Modine PTP 175
Available: In Stock
$1,760.00
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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. Although it's a bit of an eyesore there's a series feature comparison PDF at the bottom of this page you can take a look at comparing 29 heater company's products.

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
  • 175k BTU/hr input, 140k BTU/hr output at up to 2000ft elevation
  • 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 150 175 200 250
BTU/Hr Input 150k 175k 200k 250k
BTU/Hr Output 120k 140k 160k 200k
Max. Mounting Height (Ft.) 15 14 15 18
Heat Throw (Ft.) (@ Max. Mtg. Ht.) 51 50 53 62
Vent Diameter (kit sold sep.) 4" 4" 4" 6"
Approx. Weight 163lbs 163lbs 220lbs 265lbs
Air Throw Orientation Horizontal Horizontal Horizontal Horizontal
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

Heater Maintenance Checklist

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 175, it has a BTU/hr input of 175,000 BTUs and an output of 140,000 BTUs. Elevation lowers heater effectiveness. Above 2000ft elevation, for every 1000ft reduce your output rating by 4%. 

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. Although it's a bit of an eyesore there's a series feature comparison PDF at the bottom of this page you can take a look at comparing 29 heater company's products.

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
  • 175k BTU/hr input, 140k BTU/hr output at up to 2000ft elevation
  • 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 150 175 200 250
BTU/Hr Input 150k 175k 200k 250k
BTU/Hr Output 120k 140k 160k 200k
Max. Mounting Height (Ft.) 15 14 15 18
Heat Throw (Ft.) (@ Max. Mtg. Ht.) 51 50 53 62
Vent Diameter (kit sold sep.) 4" 4" 4" 6"
Approx. Weight 163lbs 163lbs 220lbs 265lbs
Air Throw Orientation Horizontal Horizontal Horizontal Horizontal
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.

Manufacturer PDFs

Exhaustive Feature Comparison of 29 Gas Fired Heater Company Products

Good, Better, Best Comparison Between PTP, PDP, and PTC (Effinity) Series

Heater Maintenance Checklist