Pool Heaters

XTherm Commercial Pool Heaters (Ultra High Efficiency)

Buy XTherm from Raypak Commercial Pool Heaters in Michigan - xThermThe XTherm – vertical modulating condensing boiler in sizes to 2000 MBTU. XTherm combines time honored high recovery copper fin technology with cutting edge control and combustion advancements. The installer and building owner enjoy broad installation flexibility, easy commissioning, optimum seasonal efficiency, and long term reliability.

Remarkably small footprint saves space for those cramped retrofit projects. Built to last, with industrial grade construction and user friendly serviceability. Extreme burner turndown produces up to 99% efficiency at low fire when it's most needed. Meets even 2012 LoNOx standards. Now is the time to take a closer look at Raypak's XTherm.

Key Features

  • PVC vent capable – optional at time of order
  • 3 models from 1,000,000 to 2,000,000 BTUH
  • 97% thermal efficiency at full fire in pool applications
  • Minimum continuous inlet water temperature (50 F)
  • Small footprint design, less than 11 square feet
  • AB 1953 low lead compliant
  • On-board diagnostic center, real English, no codes
  • All models indoor/outdoor certified
  • Complete cabinet protects all controls and wiring
  • Meets all current Low NOx regulations, including the new 2010 SCAQMD revisions
  • Suitable for altitudes up to 10,000 ft. (derate above 5,000 ft.)
  • Equipped with all cupro-nickel, bronze and stainless steel waterways


Brochure, Installation & Operating Instructions , Spec Sheets

Raytherm Commercial Pool Heaters

Only Raypak offers a pool heater that is not only the most efficient (up to 82% thermal efficiency) but also includes engineering and manufacturing innovations not found in other makes. As a result, Raypak's commercial pool heater is unmatched...

Hi Delta™ Sealed Combustion Pool Heaters

85% Standard Pool Heaters
98% condensing system available
18 models from 120,000 to 2,340,000 BTUH

The patented burner “security blanket,” an ingenious enhancement that provides a perfected air-gas pathway for complete combustion, makes the Hi Delta the most adaptable sealed-combustion pool heater on the market today.


80,000 to 8,000,000 BTU
Hamilton Engineering’s full line of condensing combustion products (EVO Boilers with Innovative Condensing Technology) are the mainstream in energy and emissions saving technology today.

Custom System Solutions

A Hamilton Engineering Custom System Solutions are built and sized to meet the space constraints and your floor plan. Factory designed, engineered, and pre-fabricated for your specific individual project. Why take days on site when this takes just minutes to set up to start making system field connections?

EVO Boilers & Water Heaters with Innovative Condensing Technology

The EVO family of products was designed from the ground up, using technology and components that have been proven in millions of products since 1992, assuring you proven, simple, efficient technology that is identical throughout our entire product line. If you can understand, set up and service our HW 79 product, you can do the same with our HW 1999. Our EVO products are virtually identical, with the exceptions of internal operating software and a few safeties, as required by code.