German-engineered condensing boilers and Buderus cast iron
Bosch Thermotechnology sells gas boilers in Canada under both the Bosch Greenstar condensing line and the German Buderus brand. The Greenstar wall-hung and floor-standing boilers reach up to 95% AFUE, while Buderus offers both precision cast-iron (Logano GC144) and wall-hung condensing (Logamax plus GB142) options. All Greenstar and Buderus gas boilers are certified for use in Canada.
4 series · 10 individual models. Click any series for full specs, pricing, and installation details.
Wall-hung condensing combi for heat and on-demand hot water
The Greenstar Combi is a fully-modulating, direct-vent condensing combi boiler that supplies both space heating and tankless domestic hot water from a single wall-hung unit. It uses an aluminum-silicon primary heat exchanger plus a stainless-steel plate heat exchanger for DHW, and is available in floor-standing FS configurations as well.
Efficiency
Up to 95% AFUE
BTU Range
36,000 to 151,600 BTU input
Models
3
Condensing system boiler for hydronic heating
The heating-only Greenstar is a wall-hung or floor-standing condensing boiler dedicated to hydronic space heating, pairing with an indirect tank when domestic hot water is required. It shares the Greenstar aluminum-silicon heat exchanger and modulating burner for high seasonal efficiency.
Efficiency
Up to 95% AFUE
BTU Range
24,600 to 151,600 BTU input
Models
3
German cast-iron gas boiler built for longevity
The Buderus Logano GC144 is a compact atmospheric cast-iron gas boiler cast from Buderus patented GL180M iron for corrosion resistance and durable heat transfer. It delivers up to 85% AFUE, includes the AquaSmart outdoor-reset control, and is CSA-approved for installation on combustible floors in Canada.
Efficiency
Up to 85% AFUE
BTU Range
74,000 to 132,500 BTU input
Models
3
Wall-hung condensing boiler with proven Buderus technology
The Buderus Logamax plus GB142 is a wall-hung gas condensing boiler offering well-developed, energy-saving condensing technology at up to 95% AFUE. It is a compact, modulating heating boiler that pairs with an indirect tank for domestic hot water.
Efficiency
Up to 95% AFUE
BTU Range
Up to 104,000 BTU input
Models
1
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Seeing a fault code or a specific problem? Start with our Bosch guides — then call a licensed BC gas technician for anything touching gas, combustion or safety controls.
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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
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