Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The XTherm H7-3005 adds 1,001 MBTUH of input and 961 MBTUH of output over the XTherm H7-2005A on the same XTherm platform. This is the manual-group boundary: the 3005 leaves I&O 241513 for 241549, changes to 208-240 VAC power, gains 10:1 turndown and needs 190 gpm maximum flow.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Raypak XTherm H7-2005A | Raypak XTherm H7-3005 |
|---|---|---|
| Input | 1,999 MBH | 3,000 MBH |
| Output | 1,919 MBH | 2,880 MBH |
| AHRI thermal efficiency | 96 % | 96 % |
| Turndown | 7:1 | 10:1 |
| Flue outlet | 8 in | 10 in |
| Weight | 1,461 lb | 2,775 lb |
| Maximum water flow | 70 GPM | 190 GPM |
The H7-2005A is rated 1,999 MBTUH input and 1,919 MBTUH output with 7:1 turndown; the H7-3005 is rated 3,000 MBTUH input and 2,880 MBTUH output with 10:1 turndown. Both models carry the same published efficiency figure, so capacity is the variable rather than efficiency.
This is the manual-group boundary: the 3005 leaves I&O 241513 for 241549, changes to 208-240 VAC power, gains 10:1 turndown and needs 190 gpm maximum flow. Maximum water flow rises from 70 gpm to 190 gpm, which is the main plant-side difference between the two sizes. Shipping or operating weight moves from 1,461 lb to 2,775 lb, which matters for rigging and floor loading.
Both sizes are documented in the same official Raypak submittal for the XTherm family, so the decision is a heat-loss and plant-layout question rather than a documentation difference: size to the calculated design-day load, then check flow, connection and venting dimensions against the submittal for the exact model.
Raypak
The Raypak XTherm H7-2005A is a vertical modulating condensing commercial hydronic boiler rated 1,999 MBTUH input and 1,919 MBTUH output at 96% thermal efficiency, with 7:1 turndown, Category IV venting and a 8 in flue.
Raypak
The Raypak XTherm H7-3005 is a vertical modulating condensing commercial hydronic boiler rated 3,000 MBTUH input and 2,880 MBTUH output at 96% thermal efficiency, with 10:1 turndown, Category IV venting and a 10 in flue.
Raypak I&O 241549 covers the 3005-4005 group in English and French, with submittal 241868 for the ratings.
The product page model data lists 120 VAC for the 1005A-2005A sizes and 208-240 VAC for the 3005-4005 sizes.
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.