| Heat Exchanger Selection |
While selection of the appropriate ÖKO model size is important to your system’s overall performance, this task need not be difficult.
We understand that each heat exchanger application is unique, although certain commonalities do arise. Below is a quick selection guide that encompasses a broad scope of common applications.
For a detailed heat exchanger selection tailored to your application, please fill out our Heat Exchanger Selection Form
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| Domestic water - Heat Exchanger Performance |
| Based On: |
| Hot side = Boiler water @ 180ºF - 160ºF |
| Cold side = Domestic water @ 40ºF - 140ºF |
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GPM |
GPM |
Model |
| BTU/hr |
Hot side |
Cold side |
OKO 5x12 |
| 25,000 |
2.6 |
0.5 |
OKO 5x12 - 10 |
| 40,000 |
4.1 |
0.8 |
OKO 5x12 - 10 |
| 50,000 |
5.2 |
1.0 |
OKO 5x12 - 10 |
| 60,000 |
6.2 |
1.2 |
OKO 5x12 - 10 |
| 75,000 |
7.7 |
1.5 |
OKO 5x12 - 10 |
| 90,000 |
9.3 |
1.8 |
OKO 5x12 - 20 |
| 100,000 |
10.0 |
2.0 |
OKO 5x12 - 20 |
| 125,000 |
12.9 |
2.5 |
OKO 5x12 - 20 |
| 140,000 |
14.4 |
2.8 |
OKO 5x12 - 20 |
| 150,000 |
15.5 |
3.0 |
OKO 5x12 - 20 |
| 175,000 |
18.0 |
3.5 |
OKO 5x12 - 30 |
| 200,000 |
20.6 |
4.0 |
OKO 5x12 - 30 |
| 250,000 |
25.7 |
5.0 |
OKO 5x12 - 40 |
| 300,000 |
30.9 |
6.0 |
OKO 5x12 - 50 |
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| Snow Melt- Boiler Water to 40% Ethylene Glycol - Heat Exchanger Performance |
| Based On: |
| Hot side = Boiler water @ 180ºF - 150ºF |
| Cold side = 40% ethylene glycol @ 100ºF - 130ºF |
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GPM |
GPM |
Model |
| BTU/hr |
Hot side |
Cold side |
OKO 5x12 |
| 25,000 |
1.7 |
1.9 |
OKO 5x12 - 10 |
| 40,000 |
2.8 |
3.0 |
OKO 5x12 - 10 |
| 50,000 |
3.4 |
3.7 |
OKO 5x12 - 10 |
| 60,000 |
4.1 |
4.5 |
OKO 5x12 - 10 |
| 75,000 |
5.2 |
5.6 |
OKO 5x12 - 20 |
| 90,000 |
6.2 |
6.7 |
OKO 5x12 - 20 |
| 100,000 |
6.9 |
7.4 |
OKO 5x12 - 20 |
| 125,000 |
8.6 |
9.3 |
OKO 5x12 - 20 |
| 140,000 |
9.6 |
10.4 |
OKO 5x12 - 20 |
| 150,000 |
10.3 |
11.1 |
OKO 5x12 - 30 |
| 175,000 |
12.0 |
13.0 |
OKO 5x12 - 30 |
| 200,000 |
13.8 |
14.9 |
OKO 5x12 - 30 |
| 250,000 |
17.2 |
18.6 |
OKO 5x12 - 40 |
| 300,000 |
20.6 |
22.3 |
OKO 5x12 - 50 |
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| Radiant Floor-Water to Water - Heat Exchanger Performance |
| Based On: |
| Hot side = Boiler water @ 180ºF - 160ºF |
| Cold side = Radiant floor water @ 100ºF - 120ºF |
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GPM |
GPM |
Model |
| BTU/hr |
Hot side |
Cold side |
OKO 5x12 |
| 25,000 |
2.6 |
2.5 |
OKO 5x12 - 10 |
| 40,000 |
4.1 |
4.0 |
OKO 5x12 - 10 |
| 50,000 |
5.2 |
5.1 |
OKO 5x12 - 10 |
| 60,000 |
6.2 |
6.1 |
OKO 5x12 - 10 |
| 75,000 |
7.7 |
7.6 |
OKO 5x12 - 20 |
| 90,000 |
9.3 |
9.1 |
OKO 5x12 - 20 |
| 100,000 |
10.3 |
10.1 |
OKO 5x12 - 20 |
| 125,000 |
12.9 |
12.6 |
OKO 5x12 - 20 |
| 140,000 |
14.4 |
14.1 |
OKO 5x12 - 30 |
| 150,000 |
15.5 |
15.1 |
OKO 5x12 - 30 |
| 175,000 |
18.0 |
17.7 |
OKO 5x12 - 30 |
| 200,000 |
20.6 |
20.2 |
OKO 5x12 - 40 |
| 250,000 |
25.8 |
25.2 |
OKO 5x12 - 50 |
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| Contact Info |
T: (289) 270-4343
E: support@okobrazed.com |
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| Simple. Clean. Effective. |
Heat exchangers do not create energy. They are non-electrical, engineered products that facilitate the recycling and transfer of heat from one process, to be reused in another process. An effective, environmental alternative to your energy solutions. |
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