Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The EP-299 raises the Elite Premier ceiling to 299,000 BTU/hr and 277 MBH heating capacity, moves the CH connection to 1-1/4" NPTF and uses the taller 36.5 in cabinet. Both keep the 1" NPTF gas inlet and 95% printed AFUE, and the EP-299 shares its printed 211 lb weight and 3.1 gal water content with the EP-301.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | HTP EP-220 | HTP EP-299 |
|---|---|---|
| Input rate, minimum | 22 MBH | 30 MBH |
| Input rate, maximum | 220 MBH | 299 MBH |
| AFUE (as printed) | 95 % | 95 % |
| Heating capacity | 204 MBH | 277 MBH |
| Shipping weight | 164 lb | 211 lb |
| Boiler water content | 2.6 gal | 3.1 gal |
| Dimensions (W x H x D) | 14.5" x 24.5" x 26.5" | 14.5" x 36.5" x 24.75" |
| CH supply/return connection | 1" NPTF | 1-1/4" NPTF |
| Gas supply connection | 1" NPTF | 1" NPTF |
| Venting | 4" (200 ft) or 6" (275 ft), combined equivalent feet | 4" (200 ft) or 6" (275 ft), combined equivalent feet |
Input runs 22,000-220,000 BTU/hr on the EP-220 and 30,000-299,000 on the EP-299; heating capacity steps from 204 to 277 MBH in LP-550 Table 4 at 95% printed AFUE each.
The EP-299's CH supply/return connection grows to 1-1/4" NPTF (from 1") per LP-558 and its cabinet changes to 14.5 x 36.5 x 24.75 in; shipping weight rises from 164 to 211 lb and water content from 2.6 to 3.1 gal.
Both use 4" (200 ft) or 6" (275 ft) venting and a 1" NPTF gas inlet; the EP-299's higher 30,000 BTU/hr minimum fire is the trade-off for the extra 73 MBH of capacity.
HTP
The HTP EP-220 is the 220 MBH class model of the retired Elite Premier low-mass condensing boiler line: 22,000 to 220,000 BTU/hr input, 95% printed AFUE, 204 MBH heating capacity and a 164 lb shipping weight, recorded from the official retired Elite Premier table.
HTP
The HTP EP-299 is the 299 MBH class model of the retired Elite Premier low-mass condensing boiler line: 30,000 to 299,000 BTU/hr input, 95% printed AFUE, 277 MBH heating capacity and a 211 lb shipping weight, recorded from the official retired Elite Premier table.
LP-558 prints 1-1/4" for the 299 and 301 against 1" for the 80 through 220.
Yes — LP-550 Table 4 prints 211 lb against 164 lb for the EP-220, with 3.1 vs 2.6 gal water content.
Yes, both print 95% on the retired page 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.