RSI Boilers

RSI Boilers - HeatMaster SS and Nature's Comfort Authorized Dealer

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Water to Air Heat Exchangers

Free Shipping

Manifold Inlet & Outlet 1" Sweat.

12 Fins Per Inch, 3 Rows of 3/8" Tubes
Ports are on the side of the first number in the dimension size

Free Shipping to lower 48 states

water to air coil








































Fin Size Outside Dimensions Price
8"x8" 8 1/4"x10"x3 1/2" $95.00 
12"x6" 12 1/4"x8"x3 1/2" $95.00 
12"x12" 12 1/4"x14"x3 1/2" $105.00
12"x15" 12 1/4"x17"x3 1/2" $122.00
12"x16" 12 1/4"x18"x3 1/2" $125.00
12"x18" 12 1/4"x20"x3 1/2" $120.00
12"x21" 12 1/4"x23"x3 1/2" $135.00
12"x24" 12 1/4"x26"x3 1/2" $139.00
14"x14" 14 1/4"x16"x3 1/2" $120.00
14"x16" 14 1/4"x18"x3 1/2" $135.00
14"x18" 14 1/4"x20"x3 1/2" $133.00
15"x15" 15 1/4"x17"x3 1/2" $125.00
15"x18" 15 1/4"x20"x3 1/2" $156.00
15"x20" 15 1/4"x22"x3 1/2" $157.00
15"x21" 15 1/4"x23"x3 1/2" $158.00
15"x24" 15 1/4"x26"x3 1/2" $180.00
16"x16" 16 1/4"x18"x3 1/2" $135.00
16"x18" 16 1/4"x20"x3 1/2" $140.00
16"x20" 16 1/4"x22"x3 1/2" $178.00
16"x22" 16 1/4"x24"x3 1/2" $175.00 
17"x22" 17 1/4"x24"x3 1/2" $165.00
18"x17" 18 1/4"x19"x3 1/2" $155.00
18"x18" 18 1/4"x20"x3 1/2" $165.00
18"x20" 18 1/4"x22"x3 1/2" $199.00
18"x21" 18 1/4"x23"x3 1/2" $218.00
18"x22" 18 1/4"x24"x3 1/2" $222.00
18"x24" 18 1/4"x26"x3 1/2" $228.00
19"x20" 19 1/4"x22"x3 1/2" $203.00
20"x19" 20 1/4"x21"x3 1/2" $203.00
20"x20" 20 1/4"x22"x3 1/2" $216.00
20"x22" 20 1/4"x24"x3 1/2" $245.00
20"x25" 20 1/4"x27"x3 1/2" $264.00
21"x21" 21 1/4"x23"x3 1/2" $256.00
22"x22" 22 1/4"x24"x3 1/2" $265.00
22"x24" 22 1/4"x26"x3 1/2" $270.00
22"x25" 22 1/4"x27"x3 1/2" $285.00
24"x24" 24 1/4"x26"x3 1/2" $296.00
25"x25" 25 1/4"x27"x3 1/2" $250.00
25"x30" 25 1/4"x32"x3 1/2" $350.00
26"x28" 26 1/4"x30"x3 1/2" $365.00
30"x30" 30 1/4"x32"x3 1/2" $390.00
12x12 dimensions on pic.
Coil
New design easier to mount. Can screw directly into plenum through plate above and below headers.
coil


























Free Shipping to lower 48 states
Fin Size Outside Dimensions Price
8"x8" 8"x9"x3-1/2" $62.00
12"x6" 12"x7"x3-1/2" $74.00
12"x12" 12"x13"x3 1/2" $89.00
12"x15" 12"x16"x3-1/2" $100.00
12"x18" 12"x19"x3 1/2" $110.00
12"x21" 12"x22"x3-1/2" $125.00
12"x24" 12"x25"x3-1/2" $135.00
14"x10" 14"x11"x3-1/2" $89.00
14"x14" 14"x15"x3 1/2" $110.00
14"x16" 14"x17"x3-1/2" $118.00
14"x18" 14"x19"x3 1/2" $125.00
15"x15" 15"x16"x3 1/2" $118.00
15"x18" 15"x19"x3 1/2" $125.00
15"x21" 15"x22"x3 1/2" $148.00
15"x24" 15"x25"x3 1/2" $140.00
16"x16" 16"x17"x3 1/2" $135.00
16"x18" 16"x19"x3 1/2" $140.00
16"x20" 16"x21"x3 1/2" $155.00
16"x22" 16"x23"x3 1/2" $175.00
18"x18" 18"x19"x3 1/2" $165.00
18"x20" 18"x21"x3 1/2" $175.00
18"x22" 18"x23"x3 1/2" $199.00
18"x24" 18"x25"x3 1/2" $209.00
19"x20" 19"x21"x3 1/2" $185.00
20"x19" 20"x20"x3 1/2" $185.00
20"x20" 20"x21"x3 1/2" $188.00
20"x22" 20"x23"x3 1/2" $195.00
20"x25" 20"x26"x3 1/2" $217.00
22"x22" 21"x23"x3 1/2" $215.00
22"x25" 22"x26"x3 1/2" $240.00
24"x24" 24"x25"x3 1/2" $255.00
24"x24" 24"x25"x3 1/2" (1.25") $275.00
25"x30" 25"x31"x3-1/2" $315.00
30"x30" 30"x31"x3-1/2" (1.25") $420.00
36"x36" 36"x37"x3-1/2" (1.25") $575.00
Installation Bracket  One Size fits all 
Free shipping when ordered with heat exchanger from this list
$36.00




Please Contact us for more info or with any questions
Philip Howard / RSI
109 Commercial St / PO box 341
Arlington, WI 53911
608-438-8300

sales@rsiboilers.com