Water to Air Heat Exchanger 15x21~~1" Copper Ports

  • $130.00


Click here for products to help with the installation of this product.

15x21 /126,000 BTUs / 100 PSI For use in your hot air furnace plenum.

***Not recommended for air compressors*** 

Information about our heat exchangers

  • This heat exchanger is ideal for a 15"x 22" plenum or larger.
  • The outlets come out on the 15" side (shown as the vertical side in the picture above)
  • The fin area is 15"x 21"
  • GPM 13.1
  • CFM 1537
  • Outside Dimensions 15”(width)x24.5”(Length from Manifold to Base)x3.5”(Thickness)
  • There is a 1" frame on the end opposite the outlets that covers the copper elbows. This makes the area inside of your plenum 1" longer.
  • All exchangers are 3 1/2" thick.
  • Aluminum fins are installed at 12 fines per inch.
  • All exchangers are triple pass design.
  • Tubing is 1/4" copper.
  • Our exchangers have 1" copper outlets and can be installed with either sweat fittings or push fit type fittings like sharkbite's.
  • Exchangers from us come with a lifetime warranty, including shipping.  
  • Exchangers will work with chilled water also.
  • We stock many sizes, always order the largest size that will fit into your plenum.

Installation brackets for installing water to air heat exchangers inside of furnace plenums. This easy to install kit takes all of the work out of installing a coil.  Great for the do it yourselfer or the seasoned installer

This kit will work with most coils being sold on Ebay that are 3.5" wide. Check before you buy, but that will cover over 90% of the ones being sold. Even most that are listed as 4"  are actually 3.5". These will work with every heat exchanger we sell in our Ebay and website store.

We provide a lifetime warranty against manufacturer's defects and corrosion. 

These heat exchangers can also be used as a stand alone heat source by simply attaching a fan or squirrel cage to one side of the unit. They can be installed in either the hot air side or the cold air return of a furnace. Please note that if installed in the cold air return you will need to install a 3 way zone valve in order for the fan to operate properly.

This heat exchanger is of a new style which does not require bending of your duct work. 

This new style heat exchanger can be easily installed by just slipping it into the plenum and attaching with self threading screws.  You will not need any special tools to install.  This unit is easier to install than others on the market because it attaches from the front instead of the side.

Water to Air heat exchangers, often called duct coils or furnace radiators, are used for installing into forced air furnace to provide heat from hot water.  They are usually installed into the cold air side of the furnace if that is the best option. They work in much the same way as the central air conditioning unit.

The  following things should be taken into consideration when installing a duct coil.

(1) Size the coil so that the  fins take up the maximum amount of the plenum as possible.

(2) Securely fasten the unit so that it doesn't rattle.

(3) Make sure there are no foreign objects are touching the fins or the tubes.

(4) Duct tape any air leaks.

(5) Do not bend the fins.  If you do, straighten them as best you can.  A tool called a "Rake" is available for straightening the fins.

(6) If you are  going  to run your outside heat in the summer install a bypass valve.

(7) A duct coil installation kit makes installing the heat exchanger easier.

All coils come packed in foam to prevent damage during shipping. We are a well established US company with many years of experience selling parts and supplies to the solar and outdoor wood furnace industries. Feel free to contact us with any questions you may have about hydronic heating or cooling parts and supplies whether you bought them from us or not.

***We will ship to Alaska/Hawaii...please call for shipping quote*** 

 

Part#

 

Width

 

Depth

Plenum

Depth

Overall

Depth

Port

Size

BTU

8x8

8

8

9

13

1

25,600

12x6

12

6

7

11

1

28,800

12x12

12

12

13

17

1

57,600

12x15

12

15

16

20

1

72,000

12x18

12

18

19

23

1

86,400

12x21

12

21

22

26

1

100,800

12x24

12

24

25

29

1

115,200

14x10

14

11

11

15

1

56,000

14x14

14

14

15

19

1

78,400

14x16

14

16

17

21

1

89,600

14x18

14

18

19

23

1

100,800

15x15

15

15

16

20

1

90,000

15x18

15

18

19

21

1

108,000

15x21

15

21

22

26

1

126,000

15x24

15

24

25

29

1

144,000

16x16

16

16

17

21

1

102,400

16x18

16

18

19

23

1

115,200

16x20

16

20

21

25

1

128,000

16x22

16

22

23

27

1

140,800

18x18

18

18

19

23

1

129,600

18x20

18

20

21

25

1

144,000

18x22

18

22

23

27

1

158,400

18x24

18

24

25

29

1

172,800

19x20

19

20

21

25

1

152,000

20x19

20

19

20

24

1

152,000

20x20

20

20

21

25

1

160,000

20x22

20

22

23

27

1

176,000

20X25

20

25

26

30

1

200,000

22x22

22

22

23

27

1

193,600

22x25

22

25

26

30

1

220,000

22x30

22

30

31

34

1

264,000

24x24

24

24

25

29

1

230,400

24x24

24

24

25

29

1.25

230,400

25x30

25

30

31

35

1

300,000

30x30

30

30

31

34

1.25

360,000

36x36

36

36

37

41

1.25

518,400

SIZE

           BTU

          CFM

     GPM

8X8

25,600

500

5

12X6

28,800

600

5

12X12

57,600

700

6

12X15

72,000

700

6

12X18

86,400

800

6

12X21

100,800

800

6

12X24

115,200

800

6

14X10

56,000

800

7

14X14

78,400

800

7

14X16

89,600

800

7

14X18

100,800

800

7

15X15

90,000

1000

8

15X18

108,000

1050

8

15X21

126,000

1100

8

15X24

144,000

1150

8

16X16

102,400

1250

8

16X18

115,200

1650

10

16X20

128,000

1800

10

16X22

140,800

1900

11

18X18

129,600

2000

12

18X20

144,000

2350

14

18X22

158,400

2400

14

18X24

172,800

2450

14

19X20

152,000

2500

15

20X19

152,000

2500

15

20X20

160,000

2700

16

20X22

176,000

2750

17

20x25

200,000

2800

18

22x22

193,600

2400

21

22x25

220,000

2800

21

22x30

230,000

3000

21

24x24

230,400

3300

21

24x24 w/1 1/4" ports

230,400

3300

22

25x30

300,000

3400

22

30x30 w/1 1/4" ports

360,000

3600

24

36x36 w/1 1/4" ports

518,400

4000

30