American-built condensing boilers with smart controls
Lochinvar is a Tennessee-based manufacturer of high-efficiency gas boilers and water heaters, widely specified across North America for residential and commercial hydronic systems. Its condensing lineup pairs stainless-steel fire-tube heat exchangers with the SMART SYSTEM operating control and CON·X·US remote connectivity. The brand is known for strong turndown, ECM pump technology, and serviceable wall- and floor-mount designs.
3 series · 11 individual models. Click any series for full specs, pricing, and installation details.
Residential condensing fire-tube workhorse
The KNIGHT Fire Tube is Lochinvar's flagship residential heating-only condensing boiler, available in wall-mount (WHB) and floor-mount (KHB) configurations. It uses a stainless-steel fire-tube heat exchanger with a 10:1 turndown and a standard ECM variable-speed pump.
Efficiency
Up to 95% AFUE
BTU Range
399,000 BTU/hr
Models
5
Fire-tube combi for heat and domestic hot water
The NOBLE Combi (NKC) delivers space heating and on-demand domestic hot water from a single wall-mounted condensing unit. It features a stainless-steel fire-tube heat exchanger, a built-in circulating pump, and the SMART CONTROL operating system.
Efficiency
Up to 95% AFUE
BTU Range
199,000 BTU/hr
Models
3
Light-commercial fire-tube condensing boiler
The FTXL is Lochinvar's light-commercial fire-tube condensing boiler, reaching up to 98% thermal efficiency in a compact floor-mount footprint. It supports flow rates from 10 to 150 GPM with SMART SYSTEM controls and CON·X·US remote connectivity.
Efficiency
Up to 98% thermal efficiency
BTU Range
999,000 BTU/hr
Models
3
Permit pulled, full commissioning, warranty registration.
Diagnose error codes, faults, and failures across all models.
Annual service keeps warranty valid and efficiency high.
Same-day no-heat, leak, gas-smell & CO-alarm response.
Seeing a fault code or a specific problem? Start with our Lochinvar guides — then call a licensed BC gas technician for anything touching gas, combustion or safety controls.
We service Lochinvar boilers in every Greater Vancouver community. Same-day response in our core service area.
Real 5-star Google reviews from CANRO Boiler Service & Repair customers across Greater Vancouver.
Nikita Bhatia
Joe and Allan are a great team. They gave me the right advice and helped me make a good decision with my heating system. Professional, knowledgeable, and a genuine pleasure to deal with from start to finish.
William
Canro boiler services were genuine life savers. I was stuck without heat overnight and they came by and got my boiler running again. Fast, professional, and genuinely caring about their customers. Could not recommend them more highly.
Arlene Colasurdo
Five stars for Canro Boiler Service and Repair. We needed a replacement of a 30-year-old boiler. A new high-efficiency unit was installed professionally and efficiently. The difference in heating performance and cost savings has been remarkable.
Same-day repair · Free install quotes · Licensed BC gas-fitters