Skip to content
Boilers.caby ROMA Heating & Cooling

Comparison

Bryan Free Flex 1000 vs Flex 2000

Verdict in brief

Bryan Free Flex 1000 and Bryan Free Flex 2000 are two condensing boilers from the Bryan Boilers Free Flex (FF) Series line. Published ratings: Bryan Free Flex 1000 at 200,000–999,000 BTU/HR input, 949,000 BTU/HR output and 95% thermal efficiency; Bryan Free Flex 2000 at 400,000–1,999,000 BTU/HR input, 1,899,000 BTU/HR output and 95% thermal efficiency. Bryan Free Flex 2000 lists 1,000,000 BTU/HR more input than Bryan Free Flex 1000 (1,999,000 BTU/HR against 999,000 BTU/HR). Both list the same published thermal efficiency of 95%.

Side by side

Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.

Comparison of Bryan Free Flex 1000 and Bryan Free Flex 2000
SpecificationBryan Free Flex 1000Bryan Free Flex 2000
Input, low fire200,000 BTU/HR400,000 BTU/HR
Input, high fire999,000 BTU/HR1,999,000 BTU/HR
Output, high fire949,000 BTU/HR1,899,000 BTU/HR
Thermal efficiency95 %95 %
Burner turndown5:15:1
Water volume20 gal27 gal
Height64"75"
Width29"35"
Water connections (out / in)3" Victaulic / 3" Victaulic3" Flange / 3" Flange
Gas inlet connection1"2"
ASME Section IV rating160 PSIG / 210°F160 PSIG / 210°F
FuelNatural Gas ONLYNatural Gas ONLY
Boiler horsepower28 BHP57 BHP
Combustion efficiency94 %94 %
Low NOx emissionsCapable, Consult FactoryCapable, Consult Factory
Minimum flow rate22 gpm at 85°F ΔT45 gpm at 85°F ΔT
Maximum flow rate95 gpm at 20°F ΔT190 gpm at 20°F ΔT
Approx. shipping weight1,185 lb2,020 lb
Length72"80"
Vent and air intake6"8"

What actually separates them

Published ratings: the Bryan Free Flex 1000 is rated 200,000–999,000 BTU/HR input, 949,000 BTU/HR output and 95% thermal efficiency; the Bryan Free Flex 2000 is rated 400,000–1,999,000 BTU/HR input, 1,899,000 BTU/HR output and 95% thermal efficiency. Bryan Free Flex 2000 lists 1,000,000 BTU/HR more input than Bryan Free Flex 1000 (1,999,000 BTU/HR against 999,000 BTU/HR). Both list the same published thermal efficiency of 95%.

The boiler water content differs: the Bryan Free Flex 1000 lists 20 gal, while the Bryan Free Flex 2000 lists 27 gal. The height differs: the Bryan Free Flex 1000 lists 64", while the Bryan Free Flex 2000 lists 75". The width differs: the Bryan Free Flex 1000 lists 29", while the Bryan Free Flex 2000 lists 35".

Both records print the same thermal efficiency (95%), turndown (5:1), maximum operating pressure (160 PSIG / 210°F) and fuel (Natural Gas ONLY), per the cited sources.

CurrentCanadian status unknown
Input
200000–999000 BTU/HR
Output (max)
949,000 BTU/HR
AFUE

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.

Natural gasHeating-only
CurrentCanadian status unknown
Input
400000–1999000 BTU/HR
Output (max)
1,899,000 BTU/HR
AFUE

The Bryan Free Flex 2000 is a stainless-steel flexible-watertube condensing boiler rated 1,999,000 BTU/hr input and 1,899,000 BTU/hr output at 95% thermal / 94% combustion efficiency, 57 BHP, with 5:1 turndown in Bryan's published submittal.

Natural gasHeating-only

Frequently asked questions

Which of the two has the higher maximum input?

The Bryan Free Flex 2000 lists 1,999,000 BTU/HR, against 999,000 BTU/HR on the Bryan Free Flex 1000, per the cited documentation.

Which model is more efficient?

Both list the same thermal efficiency of 95%.

Not sure which one fits your home?

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.

CallEmailEstimate