Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The BFIT 650 and BFIT 1000 are dimensionally identical (25 5/8" × 52 3/8" × 38 1/2") with the same 97% efficiency, 10:1 turndown, <10 ppm NOx, 6" vent and 1" gas connection; the 1000 adds 349,000 BTU/hr of input and 338,000 BTU/hr of output, 1.2 more gallons of water and 70 lb of shipping weight.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Bryan BFIT 650 | Bryan BFIT 1000 |
|---|---|---|
| Input, low fire | 65,000 BTU/HR | 100,000 BTU/HR |
| Input, high fire | 650,000 BTU/HR | 999,000 BTU/HR |
| Output, high fire | 631,000 BTU/HR | 969,000 BTU/HR |
| Boiler horsepower | 19 BHP | 29 BHP |
| Thermal / combustion efficiency | 97 % | 97 % |
| Recovery rate (100°F rise) | 772 GPH | 1,187 GPH |
| Water volume | 6 gal | 8 gal |
| Fuel | Natural Gas or LP | Natural Gas or LP |
| Burner turndown | 10:1 | 10:1 |
| Low NOx emissions | <10 ppm | <10 ppm |
| Approx. shipping weight | 530 lb | 600 lb |
| Width | 25 5/8" | 25 5/8" |
| Length | 52 3/8" | 52 3/8" |
| Height | 38 1/2" | 38 1/2" |
| Water connections (out / in) | 2" FNPT / 2" MNPT | 2" FNPT / 2" MNPT |
| Vent and air intake | 6" | 6" |
| Gas inlet connection | 1" | 1" |
This pair shares one submittal template: Bryan prints the same width, length, height, water connections, vent and gas sizes, fuel options, turndown and NOx for both models. The difference is capacity — 65,000–650,000 BTU/hr input on the 650 against 100,000–999,000 BTU/hr on the 1000, with output rising from 631,000 to 969,000 BTU/hr.
Efficiency stays at 97% thermal/combustion on both, and both remain in the models 400–2000 group Bryan documents as fitting through standard doorways. The recovery rate at a 100°F rise rises from 772 to 1,187 GPH.
For a plant sized near 650 MBH, the 1000 can be specified into the same footprint and connections when future load growth is expected; the trade is 8 A versus 7 A maximum electrical draw and 600 lb versus 530 lb shipping weight.
Bryan Boilers
The Bryan BFIT 650 is a commercial condensing stainless-steel boiler rated 650,000 BTU/hr input and 631,000 BTU/hr output at 97% thermal/combustion efficiency, 19 BHP, with 10:1 turndown and <10 ppm NOx in Bryan's published submittal.
Bryan Boilers
The Bryan BFIT 1000 is a commercial condensing stainless-steel boiler rated 999,000 BTU/hr input and 969,000 BTU/hr output at 97% thermal/combustion efficiency, 29 BHP, with 10:1 turndown and <10 ppm NOx in Bryan's published submittal.
Yes. Both print 25 5/8" wide × 52 3/8" long × 38 1/2" high in Bryan's submittals.
The BFIT 1000, at 1,187 GPH at a 100°F rise against 772 GPH on the BFIT 650.
A consultation includes a heat-loss review so the size is right the first time.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.