Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The Futera III 1750 and 2000 share the same 47-3/16" × 29-1/8" cabinet, 1-1/2" gas and 2-1/2" water connections and identical 12"/10"/10" flue options; the 2000 adds 250 MBH of input and about 213 MBH of output, grows 4-1/2" taller and ships 172 lb heavier.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | RBI Futera III 1750 | RBI Futera III 2000 |
|---|---|---|
| Input, maximum | 1,750 MBH | 2,000 MBH |
| Boiler output | 1,491 MBH | 1,704 MBH |
| Efficiency (AHRI boiler) | 85.6 % | 85.6 % |
| Turndown | 4:1 | 4:1 |
| Gas connection | 1 1/2" | 1 1/2" |
| Water connection | 2 1/2" | 2 1/2" |
| Flue vent | Cat I 12" / Cat II 10" / Cat IV 10" | Cat I 12" / Cat II 10" / Cat IV 10" |
| Air intake | 12" | 12" |
| Unit width | 29.125 in | 29.125 in |
| Unit depth | 47.188 in | 47.188 in |
| Unit height | 64.5 in | 69 in |
| Shipping weight | 928 lb | 1,100 lb |
These are the top two rows of the Futera III ratings table: 1,750 MBH input / 1,491 MBH output for the MB/MW 1750 and 2,000 MBH / 1,704 MBH for the MB/MW 2000. Depth and width are identical; only the height changes, from 64-1/2" to 69" (the source prints 1938 mm for the 1750 height row).
All connections and venting options are shared — 1-1/2" gas, 2-1/2" water, 12" air intake and Category I 12" / Category II 10" / Category IV 10" flues — so near-boiler piping and vent design carry over between the two.
Shipping weight is the practical difference on site: 928 lb for the 1750 against 1,100 lb for the 2000. Both remain 85.6% AHRI Boiler Efficiency with 4:1 turndown on HEATNET 3.0.
The RBI Futera III 1750 is a gas-fired copper-fin commercial boiler rated 1750 MBH input and 1491 MBH boiler output in RBI's published ratings table, with 4:1 full modulation, Category I/II/IV venting and a 928 lb shipping weight.
The RBI Futera III 2000 is a gas-fired copper-fin commercial boiler rated 2000 MBH input and 1704 MBH boiler output in RBI's published ratings table, with 4:1 full modulation, Category I/II/IV venting and a 1100 lb shipping weight.
Yes — both rows print Category I 12", Category II 10" and Category IV 10" with a 12" air intake.
The MB/MW 2000 at 1,100 lb shipping against 928 lb for the MB/MW 1750, per RBI's ratings table.
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.