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Recommended

Exceptional Energy Efficiency that sidewall vents or vents through your existing chimney without an expensive stainless steel liner. Homeowners enjoy economical heat, plus virtually endless hot showers with lower energy costs. It’s a non-condensing 90+ AFUE in gas and oil models, and goes beyond AFUE with low idle loss for better delivered efficiency. 90+ Resolute is ideal for fin tube baseboard, cast iron radiators, air handlers, and unit heaters, complementing its exceptional performance with high efficiency and nearly endless hot water.  Our pressure vessel doesn’t suffer from the corrosive condensate that limits the life of many condensing boilers. Plus, there’s no condensate trap, neutralizer or drain required, which simplifies your installation and minimizes related service calls for years to come.

Recommended

The strongest and most efficient condensing boiler available. Accel CS is a quiet champion in an arena of lightweights. Accel CS is made with up to 5 times more stainless steel than virtually all other condensing boilers. Combined with exceptional engineering, the result is a higher efficiency, higher quality, longer life, outstanding made in USA product. Accel CS is the most efficient condensing boiler and is an integrated system, which means it produces both heat and hot water, the largest energy consumers in cold climate homes. The advanced design optimizes condensing operation and recovers more quickly from night setback temperatures. The result is lower fuel bills and comfortable warmth for living spaces, plus nearly endless hot water for showers, kitchen, bath, and laundry.

Recommended

Exceptional energy efficiency that sidewall vents or uses a polypropylene liner in your existing chimney without an expensive stainless steel liner.

Cuts fuel bills up to 40% or more!

Resolute boilers are ideal for homes with fin tube baseboards, cast iron radiators, air handlers, and unit heaters. Homeowners who install Resolute boilers enjoy economical heat and virtually endless hot showers with lower energy costs.

Recommended

When it comes to saving energy, nothing beats the Energy Kinetics System 2000. This compact boiler system provides both heat and hot water in a small and efficient package. The boiler itself is designed to save energy by dramatically reducing stand-by loss. This boiler system achieves the lowest total cost of ownership of any heating system we sell at Sippin Energy.  This is also our technical team’s favorite boiler! (see our media gallery for some installation pictures).

Recommended

Navien Combi high-efficiency gas boilers provide both heating and domestic hot water in a compact, high-efficiency gas fired system.

The sleek and stylish Raypak Digital Gas Pool and Spa Heater features innovative technology designed to keep your pool or spa at the perfect temperature for your enjoyment. Built to withstand various weather conditions, this modern pool and spa heater is the perfect solution for environments requiring efficiency, convenience and versatility.

Recommended

The perfect combination of reliability, technology, and performance in one compact unit. The Rinnai I-Series condensing gas boiler product lineup consists of heat-only and combi models that consistently provide simultaneous delivery of hot water and home heating without interruption.

Recommended

The Spirit furnace made by ThermoPride is a high quality high-efficiency furnace that is moderately priced. It features a heavy-duty 22 gauge powder coated cabinet and a drum style heat exchanger as well as a ceramic combustion chamber, resulting in a reliable and quiet running system.

Recommended

ThermoPride warm air furnaces are simply the best there is. It is evident from just looking at one of these units that they are built to last, but durability is only one feature of ThermoPride.

The new Starfire IV oil-fired water boiler is available in 9 sizes from 103 MBH to 252 MBH and features a dependable cast iron heat exchanger and a HydroLevel High Limit and Circulator Relay Control with LWCO, digital temperature display and diagnostics.

Space heating boiler for connection to a hot water tank with unsurpassed performance and control.

For the ultimate in home heating, Burderus has been the choice for high-end heating for decades. representing European cutting-edge technology, Buderus has combined a compact, high efficiency boiler with an indirect hot water heater that makes an unbeatable combination.

Burnham boilers provide a wide variety of high efficiency designs to accommodate any budget.  Our recommended boiler for steam applications is the US boiler/Burnham Hydronics mega steam.

Available with top/bottom (Model HS) or side (Model HC) inlet/outlet piping, Modine horizontal steam/hot water unit heaters install quickly, easily and at low cost because they are lightweight. These units are particularly useful in greenhouses with low ceilings and are normally placed around the perimeter of the greenhouse to create a warm air blanket along the walls.

Modine’s Hot Dawg is widely recognized as the industry’s most popular residentially-certified gas-fired unit heater, with six sizes available from 30,000 – 125,000 BTUs. It is an ideal solution for residential garages and workshops, along with light commercial or industrial applications.

The Special Edition trim kits are now available in three different style options. These kits fit new or existing Hot Dawg unit from 30,000 – 75,000 BTUs.

Navien gas boilers offer a high-efficiency and compact wall mounted boiler that can provide heating and hot water.

Peerless Boilers have always been know for their high efficiency and outstanding durability. Quality cast iron construction combined with innovative design makes these hot water boilers an outstanding choice for hot water heating.

The Series MI™ residential, cast iron, hot water boiler is fully packaged and ready-to-install in conventional chimney applications. The key component of the Series MI™ boiler is the heat exchanger which features a greater percentage of cast iron than the competition for a long life of durability and dependability. The front-facing integral draft diverter lends to a low-profile design allowing for installation in tight spaces with low ceilings. Backed by a non-prorated lifetime warranty on the heat exchanger, the Series MI™ is a top choice!

The Peerless^® PureFire^® stainless steel condensing boiler is Energy Star^® certified with a 95% efficiency and can be used in residential/light commercial applications. Boilers are equipped with a modern LCD control board that provides operational status in easy-to-read plain English! The boiler is fully factory tested for long-term dependability and backed by a one year parts and labor warranty (upon product registration) and 12-year warranty on the heat exchanger for extra peace of mind!

With a Rinnai EnergySaver® Direct Vent Wall Furnace, you can be assured of consistent comfort and warmth. Designed to constantly monitor room temperature, Rinnai’s unique modulating technology can respond immediately to even the smallest temperature fluctuations by optimizing gas use.

Ruud Achiever® Series Oil Furnaces are built for the low-profile needs of today’s homes. You can rely on quiet and affordable comfort for years to come.

Whether you’re in the market for residential boilers or commercial boilers—for a new application or retrofit—look to Weil-McLain.

Whether you are looking for information on residential boilers, furnaces, commercial heating products or air conditioning equipment, Williamson has what you need.