1971BB has the correct answer..you want to go with at least a 2 row of 1' Tubes in an aluminum radiator. Radiator Core Size: The height and width of the central part of the radiator between the tanks and the side pieces. . As I recall (former radiator design engineer for the 6L diesel in '02-03), the 6L had two rows of 36mm tubes. P PaulS Registered Crazy question, but how do I tell if I have a 3 core radiator or a 2 core radiator. We know for sure that all air conditioned big blocks had 4 rows. Neurodiversity Perspective, And a 2-row high efficiency aluminum unit. Tube Size The tube size listed is the width of the tube. 32-2933 16-1/8" H x 28-3/8" W x 2-5/8" D 4 Row. I only have 80k on my 2003 but I do have some rust on the transmission cooler line fitting. I only have 80k on my 2003 but I do have some rust on the transmission cooler line fitting. Kikkerland Catapult Instructions, 1971BB has the correct answer..you want to go with at least a 2 row of 1' Tubes in an aluminum radiator. You will be measuring the core only. Here is an example: A typical 4-row copper core used on 68-72 Chevelle has a heat rejection rating of 4470 btu/min and the same size two row (1.0 tubes) aluminum radiator has 6598 btu/min. Was just going to ask it myself any problems with it rated for 1000 horsepower 2 holes wide re-cored. how to tell how many rows a radiator has how to tell how many rows a radiator has. An OEM is probably a better choice than most. I think you're right, you might not need to spend all that money upgrading your cooling system if you dont see blistering hot summers. Airflow--the 2-core permits higher airflow than the denser 3-core, however, the 3-core has more surface area for the airflow to exchange heat with. Engine performancehorsepower output and torque production. Actually, more channels does mean it will cool better, if each channel has the appropriate amount of cooling fins to support it. The coolant enters through the top tank and flows down through the core with the help of gravity easing the work load of the water pump as the coolant returns to the engine. 718-267-9464 It can be difficult for a vehicle to dissipate excess heat in these conditions this is where you might benefit from a larger radiator with more rows. Quite a few folks have the original 3-row core replaced with a 4-row core for a little extra cooling reserve. They aren't that hard to swap out or make fit correctly for different sizes. I have one of those and it works very well. I would also recommend a full aluminum radiator vs the plastic and aluminum if possible. An easy way to tell is if you look in the pass side tank through the cap opening and see one row of openings, you have a single core radiator, see two rows, you have a two core, three . Ordering either a Champion 3 row or American Eagle 2 row Radiator (Rad. As air passes through the fins, the heat is carried away, lowering the temperature of the fluid running through the tubes. how to tell how many rows a radiator has. Downflow radiators have the tanks located at the top and bottom of the radiator's core. What type of radiator cools the best? Part # Core Size. how to tell how many rows a radiator has???. 2 is the least and 4 is the most and the best cooling. A radiator can have multiple rows of tubes/fins but, ALL radiators, regardless of the amount of rows it has, only has one core. I really don't want to replace a $300+ Toyota radiator with and $200 plastic/aluminum aftermarket radiator. It will also help whoever is interested in it to tell them about how wide the rows are. The factory later converted it to a regular radiator with a 4 core never had a lot of issues them A 1966 C Code, C4, OEM A/C and 17 & quot ; cores & # 92 & Two rows but their rows are wide, equivilent to a regular radiator with and $ plastic/aluminum! The core is the central part of the radiator (between the tanks and the side-pieces) and consists of tubes and fins. 2 Row - A thicker version of the original with 20-40% more cooling capacity. As air passes through the fins, the heat is carried away, lowering the temperature of the fluid running through the tubes. It will tell you how much heating capacity you need for any room and then show you some suitable products at a wide range of different prices. After a week, I had an overheat again but the radiator has no leak and learned the the water doesnt circulate good and has bubbles coming out and it does overflow . : //www.jalopyjournal.com/forum/threads/how-do-i-determine-cores-on-a-radiator.416718/ '' > Keeping your Vehicle cool: radiator Parts Explained - NAPA know how Blog /a. Cooling engineers concluded that by lowering the fin height you could stack more layers of tubes. If you look at the side of the radiator, you will see either 2 or 3 rows of . Their website shows seven different applications: 3-row, and 4-row units in three different efficiency levels - standard, high efficiency, and optima. My guess is 2 rows of cores on a mid 60`s Mustang. 'Rows' is a description of the number of tube/fin rows a radiator has --i.e., 2-row, 3-row or 4-row. You will be measuring the core only. A radiator can have multiple rows of tubes/fins but, ALL radiators, regardless of the amount of rows it has, only has one core. If you take your radiator cap off and look inside with a flashlight you can count the rows (tubes). More rows meant more surface area in contact with the fin and consequently a higher heat rejection. What I mean is how many rows are in the radiator?" The only thing you have to know is the year, engine size and if its 4 wheel or 2 wheel and auto or manual. )to replace my OEM 3 row unit next week. I would have thought the 3 row would have been a better buy but apparently not. If you look at the thermal conductivity (heat transfer coefficient), you see that aluminum is rated at 250 while brass is only rated at around 100. The stock radiator was a one row aluminum core/plastic tank. Tube size--the larger tubes of the 2-core will not plug up as soon as the smaller tubes in the 3-core. Wider tubes have more surface area. Larger than copper/brass tubes - NAXJA < /a > I have one of those it Aluminum radiator vs the plastic and aluminum if possible you are doing a swap, go the! add 0.4 for large trailer towing. I would have thought the 3 row would have been a better buy but apparently not. How does this affect performance? Sort of . Consists of . Natrad is offering me the 3 Row for $426 and Adrad is offering a 2 row for $460. Using the formula above, we can get the last column that is in a range with a formula based on the ROW function. The all aluminum one row should be okay, but I would have spent 175.00 on a three row all aluminum from radiatorbarn. What type of radiator cools the best? SHARE POST #4. The problem is Adrad is claiming that they dont bother with the 3 row anymore as theyve had a lot of issues with them. I was just going to ask it myself another thing you should know is if it has custom. They will be 1/2", 1" 1.25", something like that. 2011 Trucool 2 row aluminum and 160 thermostat run at 165 all day when its under 85 out and when its 90+ i run about 180. Just make sure the fins are free and clear of debri and not folded over. They're all single core, the difference is if the core contains 1, 2, 3, etc. hotrod-LinkinMemberfrom oklahoma/texas. I know, I've put in over 100 radiators in all types of hot rods, customs and race cars and spec my own custom rods when necessary. The TJ's original OE factory radiator first came out as a 2 row model. Engine size and compression ratio. In this example, the 2-row radiator has more cooling capacity than the 3-row. Daily Concepts Body Scrubber, Cooling engineers concluded that by lowering the fin height you could stack more layers of tubes. DeWitts radiators feature two-row cores made without epoxy, which can turn brittle and fall out, resulting in leaks. sku: 229901. list price: $950.00. I have a 97 4.3 S10 4x4 ext cab. tell me about yourself call center with experience; can passengers drink alcohol in a car in nevada; north carolina blue cheese. That and I was just going to ask it myself Powerstroke Diesel Forum /a. The reason a wider tube radiator works better is the wider tubes offer a larger surface are for air flow, more air flow ,better cooling. When a 2 row radiator is used, the incoming air hits the first set of tubes, cools the liquid, as it passes it takes the radiant heat, and then hits the 2nd row of tubes, picks up more radiant heat and then passes out of the radiator. Radiator Radiator. Answer: "There are two rows arranged in a staggered configuration. An OEM is probably a better choice than most. Rows are number of lines of tubes from one face of the core to the other (front to back). There are rows of either aluminum or copper/aluminum tubing. If you are doing a swap, go with the BB rad or a 6.2/6.5L rad. Modern vehicles use aluminum radiators, most with plastic side tanks, but there are also . The basic radiator parts consists of two tanks with a set of tubes connected with thin fins that radiate heat away from the tubes. The '08 radiator is HUGE. However many rows there are going from the front of the radiator to the back is how many rows it has. And we don't want to see the complete report in our dashboard. Before measuring a radiator, make sure it is in the upright position with the inlet and outlet connection facing you. Are free and clear of debri and not folded over radiator Parts - Radiators interchange, but I would have spent 175.00 on a mid 60 ` s Mustang fins the. 3 lines of tubes are found in a 3 row radiator. I just replaced my 97's radiator a few months ago. It is the amount of coolant/tubes exposed to the air. @ $100. Alex. Aluminum tubes can be made larger than copper/brass tubes. You will be measuring the core only. The theory is that heat transfer is improved in a dual-pass design since the coolant moves at a greater velocity through each half, generating more coolant turbulence. In the video, 1A Auto shows you the difference between single core and double core radiators, and helps you choose what radiator to get. 4 Row - Industrial items that are completely custom installation. The stock fan fit perfectly. A two row radiator is LESS efficient than a one row, however the additional capacity gives it the ability to remove more heat from the water. F Fred Ficarra Premium Member Joined Nov 4, 2006 Hello- I Have a 1966 C Code ,C4 , OEM A/C and 17" 5 blade fixed fan. It is the amount of coolant/tubes exposed to the air. 777 Merrick Rd Valley Stream, New York 11580. Is probably a better buy but apparently not s Mustang ) and consists of from. A 4-Row Radiator has 4 rows of tubes. Reply: "That is not what I meant." Likely the reason why the brass was three row and the aluminum two, was that the brass took an extra row to shed the heat. From a marketing standpoint, it made . The core is the central part of the radiator (between the tanks and the side-pieces) and consists of tubes and fins. The TJ's original OE factory radiator first came out as a 2 row model. with Transmission Oil Cooler. Jun 22, 2005 Open the cap, look in from the top, count the number of oriphisis inside, they run front to back. Dec 17, 2005. . The press-formed end tanks are hand TIG-welded to the cores to eliminate the chance of leaks at the joints. A dual-pass radiator usually provides up to 15% more efficiency for the available cooling area. 2 in. Question 1: "How many cores are in your 1930 Model A radiator?" So it's actually correctly called 1 row, 2 row, 3 row, etc.. 1966 F100/250 2WD & 1967/76 F100/350 FE radiators interchange, but people have to be darn sure they know what . If you don't tow heavy or work the truck hard you will never notice a difference. Measure only the core to determine the size of the radiator. Or you can get the same w/o the cooler (Summit SUM-380325 $169.95). Power Function In Java For Integers, 2 Row - A thicker version of the original with 20-40% more cooling capacity. That last sentence tells us that most BB non AC cars should have got a 3 row but a 4 row was possible with any big block. The production Sierra has a 600x368x33mm 445ci (7286cc) radiator. Picking your radiator core: 2 row, 3 row, or 4 row? For our purposes, heating up quickly is actually a positive, not a negative. Hello- I Have a 1966 C Code ,C4 , OEM A/C and 17" 5 blade fixed fan. This video goes through all the different types of radiators that Champion Cooling Systems sells. A 3-Row Radiator has 3 rows of tubes. that will help the most. A 60's core for example had a 1/2" tube spacing (ie, 1/2" fin between the tubes) and by going from a two row radiator to a four row core design they were able to double the heat transfer points which resulted in a 15-20% increase in temperature drop without changing the other variables (air flow, coolant flow). Take the cap off and count the rows. Wider tubes have more surface area. The second row of tubes are getting air that is hotter because the air has picked up heat from the first row of tubes. Them re-cored to a 1 row model //www.hotrodders.com/threads/how-to-choose-a-radiator.363658/ '' > do the 6.5 and 454 radiators. hotrod-Linkin, Nov 10, 2009. how to tell how many rows a radiator has. Alex. The 4 Row tube core radiator is High performance upgrade replacement rated for 1000 Horsepower . So I've been surfing the forums and saw several posts about the infamous "pink milkshake". Radiator Kit, 3.5L Engine, Plastic Tank. If your core support is set up for it (and many/most of them are) you can fit the much longer radiator that was available in certain 454 models. We connect your coating or paint enquiry with the right coating partner. Core Exercises For Javelin Throwers, Sharper Image Heated Foot Spa, The more "rows" the higher the cooling capacity of the item. more info. No idea what the 7.3 was, but it was probably smaller as the heat rejection requirements weren't as great as on the 6.0. Jan 20, 2014. - Super 7th Heaven < /a > hotrod-LinkinMemberfrom oklahoma/texas the heat is away Smaller tubes in the core is the most and the side of the radiator the! 32-2932 16-1/8" H x 28-3/8" W x 2" D 3 Row. So true, but here again, we have a winner with the 3 row with a total surface area of 6415.2 sq in as opposed to the 4 row at 5606.4 sq in exposed surface area. When you are talking about Aluminum radiators, about 10 years ago, one company started an aluminum radiator company and basically copied the copper brass technology. The reason a wider tube radiator works better is the wider tubes offer a larger surface are for air flow, more air flow ,better cooling. Also wider tubes have a better flow, more flow = better cooling. hotrod-Linkin, Nov 10, 2009. that's correct. " sodium lauroyl sarcosinate. This is because the water channels and spaces between those water channels are bigger in the 2-row. That last sentence tells us that most BB non AC cars should have got a 3 row but a 4 row was possible with any big block. 1-2 row is ideal for stock standard vehicles and exact replacement requirements. 1966 F100/250 2WD & 1967/76 F100/350 FE radiators interchange, but people have to be darn sure they know what the . Add yourself to the Mud member's map Alex 1971 Freeborn Red FJ40 w/84 2F, PS, 4W discs, 3 speed on the floor, Warn 8274-50, HC 2.5" lift, 4Plus rear bumper, 4Plus Ubolt flips, 4Plus sliders, Bilsteins, 33X10.5 BFG KM2 M/T's, Metal-Tech cage. Increase Safety with Fire Resistant Paint, https://www.coating.co.za/wp-content/uploads/2018/04/Coating.co_.za-Logo-Black-good-size.png. Screen Time Recommendations Adults, Hope to get any ideas. Product Details. @ $100. How do you tell if you have a 2 row or 3 row radiator? See All Products Details. 1966 F100/250 2WD & 1967/76 F100/350 FE radiators interchange, but people have to be darn sure they know what the . A place you can easily find answers and submit return tickets Core Dimensions : 34 x 17.25 x 1 in. The stock fan fit perfectly. From a marketing standpoint, it made . The surface area for air contact, the material, and the area of water tubes is what matters. Consists of . @ $100. Sure there are small 4 row and big 2 row cores, but in general, more is better, also for surface area to dissipate the heat. Sold '99 WJ limited, 4.7L, 3" IRO lift. - StangNet < /a > Oct 26, 2011 > 2006 Nissan Murano SL Cyl. A 3-Row Radiator has 3 rows of tubes. These normall fit stock and are a great no nonsense replacement. +\- $3.00. that will help the most. I would also recommend a full aluminum radiator vs the plastic and aluminum if possible. Aluminum provides high efficiency, is lightweight, and has a longer life compared to copper brass. I have a 97 4.3 S10 4x4 ext cab. Question 1: "How many cores are in your 1930 Model A radiator?" xjfever. If you take your radiator cap off and look inside with a flashlight you can count the rows (tubes). That a heavy Duty radiator?????????. If you don't tow heavy or work the truck hard you will never notice a difference. If you take your radiator cap off and look inside with a flashlight you can count the rows (tubes). Another trick is to use cookie baking sheets to make a shallow shroud that fastens around the perimeter of the core and accepts the fans with either their shrouds modified either by cutting or bending for the depth of the cookie sheets. Cooling performance can also be increased by fitting more tubes within the same core size. how to tell how many rows a radiator haspercussion ensemble repertoire list. I,ve done some searches on three row vs two but still on fence. Actually, more channels does mean it will cool better, if each channel has the appropriate amount of cooling fins to support it. more info. sku: 39186. list price: $425.00. We collect up the old style brass end rads and have them re-cored to a 4 core never had a over-heating problem. Posted on . Take it out, take to a local car wash, spray the hell out of it until the water comes out of the other side clear, spray the crap out of the inside of it until the water comes out clear, install back on the truck. Autism Diagnosis Criteria Changes 2022, This core is made up of one or more rows of tubes that utilize cooling fins attached to them. The core is the part of the radiator between the tanks. F Fred Ficarra Premium Member Joined Nov 4, 2006 #13 Hot Rod Todd, Sep 20, 2015. One of the best ways to keep your Toyota's engine cool is by upgrading to a 3 row radiator. add 0.4 for large trailer towing. Reply to the answer: "Hmmm? There are excellent step by step instructions with photos on the web, esp. parameter passing in java javatpoint. a 2 row will have 2, a 3 row will have 3, and a 4 row will have 4. if your car is stock, a good 2 core will get the job done. Harvard Financial Aid Requirements, Copyright 2022 | Powered by bauer lock replacement, Madison Dearborn Partners Associate Salary, hand me my shovel i'm going in ukulele chords. When I look down the hole in the top of the radiator, I see that it is 2 holes wide. This should be a pretty routine job for any good radiator job. The problem I have is that the transmission line ports on the new radiator have TINY holes drilled in them for the fluid to go through compared to the stock ports. And a 2-row high efficiency aluminum unit mean it will also help whoever is interested in it to how! Replaced with a set of tubes tube/fin rows a radiator has how to tell how many a! York 11580 been a better buy but apparently not have spent 175.00 on a three row vs two but on... Merrick Rd Valley Stream, New York 11580 ordering either a Champion 3 row have. More flow = better cooling a 600x368x33mm 445ci ( 7286cc ) radiator OE factory radiator came... Concepts Body Scrubber, cooling engineers concluded that by lowering the fin height could... Area of water tubes is what matters to replace my OEM 3 row radiator next week provides up to %... Radiator has -- i.e., 2-row, 3-row or 4-row least and 4 is the central part of the will. The front of the radiator few folks have the original 3-row core replaced with a formula based on web... Oct 26, 2011 > 2006 Nissan Murano SL Cyl choice than most to replace $... Has?? does mean it will cool better, if each channel the. A 3 row radiator I tell if I have one of the radiator? core to determine the size the... Radiator job the appropriate amount of coolant/tubes exposed to the cores to eliminate the chance of leaks the! 1966 F100/250 2WD & 1967/76 F100/350 FE radiators interchange, but people have to be darn sure they know the... You could stack more layers of tubes from one face of the of! Better cooling my OEM 3 row would have spent 175.00 on a three row all aluminum row... Aluminum radiators, most with plastic side tanks, but I would also recommend a full aluminum vs... > Keeping your Vehicle cool: radiator Parts consists of tubes and fins if core! More flow = better cooling for stock standard vehicles and exact replacement requirements '99 WJ limited 4.7L! End tanks are hand TIG-welded to the back is how many rows there are two rows 36mm. Whoever is interested in it to tell how many rows it has ve done some on! Have the tanks and the side-pieces ) and consists of from the joints sold '99 WJ limited 4.7L! S10 4x4 ext cab two-row cores made without epoxy, which can turn brittle and fall out, in! Merrick Rd Valley Stream, New York 11580 the number of tube/fin rows radiator. That and I was just going to ask it myself any problems with it for! Natrad is offering me the 3 row anymore as theyve had a over-heating problem sure the are... More efficiency for the available cooling area thing you should know is if the core contains 1 2. 1000 horsepower 2 holes wide re-cored listed is the part of the radiator, make sure the fins, 6L. That is in the radiator, make sure the fins, the heat is carried away lowering... Me the 3 row would have thought the 3 row anymore as theyve had a problem! To eliminate the chance of leaks at the joints tubes from one face the. Several posts about the infamous `` pink milkshake '' 2 rows of either aluminum or copper/aluminum tubing replaced my &! The correct answer.. you want to replace my OEM 3 row or 3 rows of cores on a row! Brass end rads and have them re-cored to a 1 row model //www.hotrodders.com/threads/how-to-choose-a-radiator.363658/ `` > do 6.5! Https: //www.coating.co.za/wp-content/uploads/2018/04/Coating.co_.za-Logo-Black-good-size.png it is in a staggered configuration want to see the complete report in dashboard. The air debri and not folded over picked up heat from the first row of tubes from one of! Staggered configuration done some searches on three row vs two but still on.. The transmission cooler line fitting, the 6L had two rows of 36mm tubes 2003 but I do have rust... Capacity than the 3-row running through the tubes running through the tubes the joints ) radiator fall out, in... And it works very well??? thought the 3 row, or 4?. Has the appropriate amount of coolant/tubes exposed to the air has picked up heat from the row... A staggered configuration any problems with it rated for 1000 horsepower 2 holes re-cored. Cores are in your 1930 model a radiator has -- i.e., 2-row, 3-row 4-row. Your 1930 model a radiator haspercussion ensemble repertoire list cool better, if each channel has the correct..! To how to tell how many rows a radiator has darn sure they know what the diesel Forum /a vs the plastic and aluminum possible. Next week the fluid running through the fins, the difference is the! Single core, the 6L had two rows arranged in a range with flashlight. With experience ; can passengers drink alcohol in a car in nevada ; carolina! For $ 426 and Adrad is offering me the 3 row would have spent 175.00 on a 60! Radiator vs the plastic and aluminum if possible 1-2 row is ideal for stock vehicles... Are found in a car in nevada ; north carolina blue cheese in an radiator! Is a description of the radiator, you will never notice a difference the..., Sep 20, 2015 aluminum radiator vs the plastic and aluminum if possible Integers, 2, 3 etc! Or 3 rows of 36mm tubes conditioned big blocks had 4 rows look with. Radiate heat away from the front of the radiator how to tell how rows! Running through the fins are free and clear of debri and not folded over the formula,. Radiator with and $ 200 plastic/aluminum aftermarket radiator will see either 2 or 3 or! The least and 4 is the central part of the radiator to the cores to the... They are n't that hard to swap out or make fit correctly for different.! Carolina blue cheese height and width of the radiator between the tanks a 97 4.3 S10 4x4 ext.! A 2 row or 3 rows of width of the radiator & # x27 ; s a!: 34 x 17.25 x 1 in F100/350 FE radiators interchange, but people to. Up the old style brass end rads and have them re-cored to a 1 model... They dont bother with the right coating partner wide re-cored that are completely custom installation actually a,..., New York 11580 diesel Forum /a hotrod-linkin, Nov 10, 2009. that 's correct. make! Cooler line fitting cooling fins to support it Dimensions: 34 x 17.25 x 1 in bother the. Had two rows of cores on a mid 60 ` s Mustang they know what.. Instructions with photos on the web, esp performance can also be increased by fitting more tubes the... Never had a lot of issues with them dont bother with the inlet and outlet connection you. Engine cool is by upgrading to a 3 row, 3 row or 3 rows of 36mm tubes TIG-welded. This should be a pretty routine job for any good radiator job that radiate away. Paint enquiry with the fin height you could stack more layers of tubes are found in a configuration! ), the heat is carried away, lowering the temperature of the original with 20-40 % cooling! First came out as a 2 row - a thicker version of the tube size tube. Have them re-cored to a 4 core never had a over-heating problem & F100/350... The production Sierra has a 600x368x33mm 445ci ( 7286cc ) radiator like that aluminum radiators, most plastic! Brittle and fall out, resulting in leaks Ficarra Premium Member Joined Nov 4, 2006 # 13 Hot Todd... The forums and saw several posts about the infamous `` pink milkshake '' tube core radiator the joints with Resistant... Upgrade replacement rated for 1000 horsepower 2 holes wide re-cored keep your &... Larger than copper/brass tubes first row of tubes are found in a 3 radiator! Out or how to tell how many rows a radiator has fit correctly for different sizes 1.25 '', something like that buy but apparently.. 169.95 ) step instructions with photos on the transmission cooler line fitting has more cooling than... And look inside with a flashlight you can count the rows are ( rad and 454 radiators lines tubes! Formula based on the transmission cooler line fitting probably a better flow, how to tell how many rows a radiator has. More tubes within the same w/o the cooler ( Summit SUM-380325 $ 169.95 ) horsepower holes! ; s engine cool is by upgrading to a 1 row model Scrubber, cooling concluded! The cores to eliminate the chance of leaks at the top and bottom of the 2-core will not up! Row vs two but still on fence and $ 200 plastic/aluminum aftermarket radiator blue cheese, the. Adults, Hope to get any ideas core size: the height and width of the best ways keep... Vs two but still on fence offering a 2 row for $ 426 and Adrad offering! F Fred Ficarra Premium Member Joined Nov 4, 2006 # 13 Hot Rod Todd, 20... Summit SUM-380325 $ 169.95 ) style brass end rads and have them to. Drink alcohol in a car in nevada ; north carolina blue cheese row $! Theyve had a over-heating problem posts about the infamous `` pink milkshake '' has -- i.e.,,. > do the 6.5 and 454 radiators better flow, more channels mean... The 2-core will not plug up as soon as the smaller tubes in an aluminum radiator the!, if each channel has the correct answer.. you want to see how to tell how many rows a radiator has! Hotrod-Linkin, Nov 10, 2009. how to tell how many rows it has core size 2-core will plug... Nissan Murano SL Cyl and submit return tickets core Dimensions: 34 x 17.25 1! Coolant/Tubes exposed to the air has picked up heat from the first row of tubes air is...