Modine PTP Greenhouse Heater
- Product SKU: PTP175SS0121SBAN
- Category: All Products, Best Sellers, GMC, Greenhouse HVAC & Climate Control, Modine Greenhouse Heaters, Recommended Products

Our take on Modine for greenhouse applications Modine stands by their warranty which isn't the case for many heater manufacturers due to humidity typical of greenhouse environments. Don't get us wrong, there are other manufacturers that manufacture solid gas fired heaters, but none we've found that can beat the value of the Modine PTP series on price, and the PTC line for efficiency (93-97%) in relation to price. The 10-year heat exchanger warranty is hard to beat, and the polyester paint is corrosion resistant which does well in a greenhouse.
The PTP series features a stainless steel tubular heat exchanger which comes with a 10-year heat exchanger warranty. The PTP series is horizontally vented and offers good value considering the efficiency rating, durability, and warranty at this price. The PTP delivers 80% thermal efficiency in a robust package of design features, including:
- 10-year heat exchanger warranty
- Built to accommodate greenhouse environments
- Seven model sizes available ranging from 150,000 to 400,000 BTU/hr
- Standard stainless steel heat exchanger extends the life of your heater
- Permanently-lubricated fan motor outside the cabinet is standard for troublefree dependability and is enclosed to limit exposure
- Tubular heat exchanger design is dependable and efficient
- Power exhauster and controls are mounted inside the cabinet for maximum protection from moisture and dust making it a great fir for greenhouse environments
- An easy access controls section makes the PTP models easy to install
- For lower BTU requirements, the Hot Dawg is available from 30,000 - 125,000 BTU/hr (stainless steel heat exchanger is optional)
- The PTP series features baked on polyester paint with excellent corrosion resistance in neutral tones.
Technical Specifications:
Model PTP Sizes | 150 | 175 | 200 |
---|---|---|---|
BTU/Hr Input | 150k | 175k | 200k |
BTU/Hr Output | 120k | 140k | 160k |
Max. Mounting Height (Ft.) | 15 | 14 | 15 |
Heat Throw (Ft.) (@ Max. Mtg. Ht.) | 51 | 50 | 53 |
Vent Diameter (kit sold sep.) | 4" | 4" | 4" |
Approx. Weight | 163lbs | 163lbs | 220lbs |
Air Throw Orientation | Horizontal | Horizontal | Horizontal |
Phase | 1 | 1 | 1 |
Frequency | 60 Hz | 60 Hz | 60 Hz |
Mfr. Parts Warranty | 2yr | 2yr | 2yr |
Mfr. Heat Exchanger Wnty | 10yr | 10yr | 10yr |
Country of Manufacture | USA | USA | USA |
Model PTP Sizes | 250 | 300 | 350 | 400 |
---|---|---|---|---|
BTU/Hr Input | 250k | 300k | 350k | 400k |
BTU/Hr Output | 200k | 240k | 280k | 320k |
Max. Mounting Height (Ft.) | 18 | 19 | 18 | 21 |
Heat Throw (Ft.) (@ Max. Mtg. Ht.) | 62 | 69 | 65 | 75 |
Vent Diameter (kit sold sep.) | 6" | 6" | 6" | 6" |
Approx. Weight | 265lbs | 270lbs | 310lbs | 320lbs |
Air Throw Orientation | Horizontal | Horizontal | Horizontal | Horizontal |
Max. Air Flow | 3995 CFM | 4545 CFM | 5280 CFM | 5995 CFM |
Width | 42 25/48 " |
42 25/48 " |
42 25/48 " |
42 25/48 " |
Height | 31 5/16 " | 31 5/16 " |
39 9/16 "
|
39 9/16 " |
Depth | 33 10/12 " |
33 10/12 " |
34 10/12 " |
34 10/12 " |
Phase | 1 | 1 | 1 | 1 |
Frequency | 60 Hz | 60 Hz | 60 Hz | 60 Hz |
Mfr. Parts Warranty | 2yr | 2yr | 2yr | 2yr |
Mfr. Heat Exchanger Wnty | 10yr | 10yr | 10yr | 10yr |
Country of Manufacture | USA | USA | USA | USA |
Manufacturer PDFs
Exhaustive Feature Comparison of 29 Gas Fired Heater Company Products
Good, Better, Best Comparison Between PTP, PDP, and PTC (Effinity) Series
Our take on Modine for greenhouse applications Modine stands by their warranty which isn't the case for many heater manufacturers due to humidity typical of greenhouse environments. Don't get us wrong, there are other manufacturers that manufacture solid gas fired heaters, but none we've found that can beat the value of the Modine PTP series on price, and the PTC line for efficiency (93-97%) in relation to price. The 10-year heat exchanger warranty is hard to beat, and the polyester paint is corrosion resistant which does well in a greenhouse.
The PTP series features a stainless steel tubular heat exchanger which comes with a 10-year heat exchanger warranty. The PTP series is horizontally vented and offers good value considering the efficiency rating, durability, and warranty at this price. The PTP delivers 80% thermal efficiency in a robust package of design features, including:
- 10-year heat exchanger warranty
- Built to accommodate greenhouse environments
- Seven model sizes available ranging from 150,000 to 400,000 BTU/hr
- Standard stainless steel heat exchanger extends the life of your heater
- Permanently-lubricated fan motor outside the cabinet is standard for troublefree dependability and is enclosed to limit exposure
- Tubular heat exchanger design is dependable and efficient
- Power exhauster and controls are mounted inside the cabinet for maximum protection from moisture and dust making it a great fir for greenhouse environments
- An easy access controls section makes the PTP models easy to install
- For lower BTU requirements, the Hot Dawg is available from 30,000 - 125,000 BTU/hr (stainless steel heat exchanger is optional)
- The PTP series features baked on polyester paint with excellent corrosion resistance in neutral tones.
Technical Specifications:
Model PTP Sizes | 150 | 175 | 200 |
---|---|---|---|
BTU/Hr Input | 150k | 175k | 200k |
BTU/Hr Output | 120k | 140k | 160k |
Max. Mounting Height (Ft.) | 15 | 14 | 15 |
Heat Throw (Ft.) (@ Max. Mtg. Ht.) | 51 | 50 | 53 |
Vent Diameter (kit sold sep.) | 4" | 4" | 4" |
Approx. Weight | 163lbs | 163lbs | 220lbs |
Air Throw Orientation | Horizontal | Horizontal | Horizontal |
Phase | 1 | 1 | 1 |
Frequency | 60 Hz | 60 Hz | 60 Hz |
Mfr. Parts Warranty | 2yr | 2yr | 2yr |
Mfr. Heat Exchanger Wnty | 10yr | 10yr | 10yr |
Country of Manufacture | USA | USA | USA |
Model PTP Sizes | 250 | 300 | 350 | 400 |
---|---|---|---|---|
BTU/Hr Input | 250k | 300k | 350k | 400k |
BTU/Hr Output | 200k | 240k | 280k | 320k |
Max. Mounting Height (Ft.) | 18 | 19 | 18 | 21 |
Heat Throw (Ft.) (@ Max. Mtg. Ht.) | 62 | 69 | 65 | 75 |
Vent Diameter (kit sold sep.) | 6" | 6" | 6" | 6" |
Approx. Weight | 265lbs | 270lbs | 310lbs | 320lbs |
Air Throw Orientation | Horizontal | Horizontal | Horizontal | Horizontal |
Max. Air Flow | 3995 CFM | 4545 CFM | 5280 CFM | 5995 CFM |
Width | 42 25/48 " |
42 25/48 " |
42 25/48 " |
42 25/48 " |
Height | 31 5/16 " | 31 5/16 " | 39 9/16 " | 39 9/16 " |
Depth | 33 10/12 " |
33 10/12 " |
34 10/12 " |
34 10/12 " |
Phase | 1 | 1 | 1 | 1 |
Frequency | 60 Hz | 60 Hz | 60 Hz | 60 Hz |
Mfr. Parts Warranty | 2yr | 2yr | 2yr | 2yr |
Mfr. Heat Exchanger Wnty | 10yr | 10yr | 10yr | 10yr |
Country of Manufacture | USA | USA | USA | USA |
Installation Modine requires installation by a professional installer. Installing yourself is highly not recommended and will void your warranty. BTU Primer Most manufacturers advertise a heaters input BTU which is the amount of fuel a heater consumes per hour. To get what matters, your output BTU, simply multiply your input BTU by your efficiency. In the case of the PTP 400, we multiply 400,000 x .80 (80%) which gives us an output of 320,000 BTU/hr. Elevation lowers heater effectiveness. Above 2000ft elevation, for every 1000ft reduce your output rating by 4%. For example, the PTP 400 at 4000ft elevation would output 294,400 BTU/hr.
Manufacturer PDFs
Exhaustive Feature Comparison of 29 Gas Fired Heater Company Products
Good, Better, Best Comparison Between PTP, PDP, and PTC (Effinity) Series