Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The Free Flex 1000 and 1500 both print 95% thermal / 94% combustion efficiency, 5:1 turndown and Natural Gas only, but the 1500 adds 501,000 BTU/hr of input and 476,000 BTU/hr of output, moves from 3" Victaulic to 3" flanged water connections, grows the vent to 8" and the gas inlet to 2", and gains 835 lb of shipping weight.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Bryan Free Flex 1000 | Bryan Free Flex 1500 |
|---|---|---|
| Input, low fire | 200,000 BTU/HR | 300,000 BTU/HR |
| Input, high fire | 999,000 BTU/HR | 1,500,000 BTU/HR |
| Output, high fire | 949,000 BTU/HR | 1,425,000 BTU/HR |
| Boiler horsepower | 28 BHP | 43 BHP |
| Thermal efficiency | 95 % | 95 % |
| Combustion efficiency | 94 % | 94 % |
| Water volume | 20 gal | 27 gal |
| Fuel | Natural Gas ONLY | Natural Gas ONLY |
| Burner turndown | 5:1 | 5:1 |
| Minimum flow rate | 22 gpm at 85°F ΔT | 34 gpm at 85°F ΔT |
| Maximum flow rate | 95 gpm at 20°F ΔT | 143 gpm at 20°F ΔT |
| Approx. shipping weight | 1,185 lb | 2,020 lb |
| Width | 29" | 35" |
| Length | 72" | 80" |
| Height | 64" | 75" |
| Water connections (out / in) | 3" Victaulic / 3" Victaulic | 3" Flange / 3" Flange |
| Vent and air intake | 6" | 8" |
| Gas inlet connection | 1" | 2" |
Bryan's submittals print the Free Flex 1000 at 200,000–999,000 BTU/hr input and 949,000 BTU/hr output, and the Free Flex 1500 at 300,000–1,500,000 BTU/hr input and 1,425,000 BTU/hr output. Both are 28/43 BHP respectively with 5:1 turndown and the same 95%/94% efficiency pair.
The physical step is substantial: shipping weight rises from 1,185 to 2,020 lb, height from 64" to 75", width from 29" to 35" and length from 72" to 80". Water volume grows from 20 to 27 gallons and water connections change from 3" Victaulic to 3" flanged.
Flow requirements scale with output: the 1000 ranges from 22 gpm at 85°F ΔT to 95 gpm at 20°F ΔT, while the 1500 runs from 34 to 143 gpm across the same ΔT span, so near-boiler piping and pump sizing must follow the larger model when selecting it.
Bryan Boilers
The Bryan Free Flex 1000 is a stainless-steel flexible-watertube condensing boiler rated 999,000 BTU/hr input and 949,000 BTU/hr output at 95% thermal / 94% combustion efficiency, 28 BHP, with 5:1 turndown in Bryan's published submittal.
Bryan Boilers
The Bryan Free Flex 1500 is a stainless-steel flexible-watertube condensing boiler rated 1,500,000 BTU/hr input and 1,425,000 BTU/hr output at 95% thermal / 94% combustion efficiency, 43 BHP, with 5:1 turndown in Bryan's published submittal.
No. The 1000 prints 3" Victaulic; the 1500 prints 3" flanged.
About 476,000 BTU/hr: 1,425,000 against 949,000 BTU/hr high-fire output.
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.