Price range: $3,290.00 through $5,099.00
Starting at:
✅ Equipment only →Just add to cart.
No guesswork. Get your exact installation cost today.
The Pentair MasterTemp is a compact, high-efficiency gas pool heater engineered for rapid heat-up times and whisper-quiet operation. Featuring a user-friendly rotating digital display and heavy-duty corrosion-resistant housing, it is the industry standard for homeowners seeking reliable temperature control in the demanding Southern Ontario climate.
In Southern Ontario, a pool heater is more than a luxury; it is a necessity to extend the swimming season from early May through late September. At 4Most Energy, we specialize in the Pentair MasterTemp installation for residential and commercial applications. Unlike "big-box" retail purchases where homeowners are often left to find their own contractors, we provide a turnkey solution. Every pool heater replacement we perform is executed by a licensed gas technician to ensure full compliance with Ontario Building Code and TSSA (Technical Standards and Safety Authority) regulations.
The MasterTemp’s pre-mixed combustion system provides an optimized fuel-to-air ratio, resulting in 84% thermal efficiency and significantly lower operating costs compared to older, atmospheric heaters. Our technicians pay meticulous attention to gas line sizing and manifold pressure settings, which are critical for the 400,000 BTU/hr models to prevent "sooting" and premature heat exchanger failure. By choosing a professional installation over uncertified alternatives, you ensure that your equipment is vented correctly—maintaining required clearances from windows and air intakes—and that your manufacturer warranty remains fully intact. Whether you are looking for a new pool heater installation in Toronto or a high-output solution for a large estate in Richmond Hill, 4Most Energy delivers technical precision and long-term equipment reliability.
Warranty Highlight: This product includes a 2-Year Limited Parts & Labor Warranty when supplied and installed by a qualified professional at 4Most Energy.
| Model | BTU/hr Input | Heat Exchanger Material | Thermal Efficiency | Gas Type |
|---|---|---|---|---|
| MasterTemp 175 | 175,000 | Copper / Cupro-Nickel (HD) | 84% | Natural Gas / LP |
| MasterTemp 200 | 200,000 | Copper / Cupro-Nickel (HD) | 84% | Natural Gas / LP |
| MasterTemp 250 | 250,000 | Copper / Cupro-Nickel (HD) | 84% | Natural Gas / LP |
| MasterTemp 300 | 300,000 | Copper / Cupro-Nickel (HD) | 84% | Natural Gas / LP |
| MasterTemp 400 | 400,000 | Copper / Cupro-Nickel (HD) | 84% | Natural Gas / LP |
In the GTA and surrounding areas, overnight temperatures can drop significantly even in July. We recommend the following:
For residential applications in Southern Ontario, the Pentair MasterTemp carries a 2-year parts and labor warranty when installed by a licensed professional. To maximize the lifespan of your unit—typically 10 to 15 years—strict water chemistry must be maintained. Chemical imbalances are the leading cause of heat exchanger pitting.
Note: Warranty excludes damage caused by freezing, scale buildup due to hard water, or improper winterization.
Toronto, Markham, Richmond Hill, Vaughan, Aurora, Newmarket, Scarborough, Brampton, and Mississauga.
Extended Service Area: Stouffville, Oshawa, Barrie, Orangeville, Hamilton, St. Catharines, Guelph, Kitchener.
Yes, however, for salt water environments, we strongly recommend the Heavy-Duty (HD) Cupro-Nickel heat exchanger option for superior corrosion resistance.
With a 400,000 BTU unit, you can typically expect a temperature rise of 1°F to 2°F per hour for a 20,000-gallon pool, depending on ambient air temperature and wind.
Yes, but it requires specific Category I or Category III venting kits. Our licensed technicians will assess your mechanical room to ensure proper air supply and exhaust.
In many cases, yes. A 400,000 BTU appliance pulls significant volume. We provide the technical documentation required for you to request a meter upgrade from Enbridge if necessary.
The MasterTemp is fully compatible with Pentair IntelliCenter, EasyTouch, and SunTouch systems, as well as most third-party automation via two-wire connection.
Our quotes are comprehensive, covering the unit, professional placement, gas connection by a licensed tech, and final safety testing.
