Residential and Commercial boiler sale, installation, parts and service. We do it all.

 We have over 30 years of  experience repairing and replacing all types of boilers.  We service any  brand of boiler.  We specialize in designing a boiler system that fits  the needs of the customer in both residential and commercial  applications.  Whether you have radiators, radiant floor heat or are  looking to melt the snow on your sidewalk or patio; we do it all.  

Boiler Maintenance

If you’re unsure whether or not  a boiler is the right choice for installation in your home, consider  the benefits that they can present. The initial cost of a boiler can be  higher than other home heating options, especially if you are looking  for a replacement heating system and do not have the necessary piping,  radiators or baseboards already installed. This initial cost can be  offset by the potential savings during operation. Boilers generally are a  very efficient heating option, and modern boilers are more efficient  than ever before. 

One of the worst things that  you can do to your boiler is to wait until there is a problem to  schedule maintenance service. This reactive attitude puts your system at  risk and also allows for lowered efficiency in the time leading up to  the manifestation of the problem. Issues with your heating system,  including boilers, do not immediately present themselves. This means  that by the time you notice a problem, it has likely been developing for  some period of time. By routinely inspecting and tuning up your entire  home heating system, we are able to ensure that each individual  component of that system is operating properly, and that the system as a  whole is in good working condition. Even small defects with a single  component can affect the efficiency and performance of your home heating  system. Make sure that this is not the case with your boiler. Call us  today to schedule boiler maintenance. 



One of our most efficient  boilers is the Lochinvar Knight.  This boiler is 95% efficient and comes  in either natural gas or propane models. The KNIGHT® floor-standing  fire tube-boiler features reduced installation footprint for flexibility  in boiler placement. Plus, all connections are on the top and left  side, so KNIGHT is an easy drop-in replacement for older, less efficient  boilers. Six models offer inputs from 55,000 to 285,000 Btu/hr. 

Bosch Greenstar Series

 The Bosch Greenstar boiler is small, ultra quiet, environmentally  friendly, and uses fuel-efficient condensing technology to deliver an  AFUE rating of 95%. The Greenstar is available in two models—combi (ZWB)  for space and tankless water heating or the space heating (ZBR), which  can be used with our DHW tanks. It features 10-Year Full / Limited  Lifetime Heat Exchanger and Limited 5-Year Parts & Labor Warranties. 


Carrier BMW Performance Series. 95% AFUE Stainless Steel Modulating Condensing Boiler features a unique,  vertically oriented stainless steel heat exchanger, 5 to 1 turndown  ratio, a light weight/compact wall-mount space- saving design,  primary/secondary piping, probe-type low water cut off, corrosion  resistant CPVC flue collector, easy to operate text display control, and  a 15 Year Limited Warranty. 

Contact Us

Great Northern Heating and Air

173 Lauman Road, Kalispell, MT 59901, USA



Open today

07:00 am – 05:00 pm

Emergency Service 24/7