Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The EFTU-85WBN and EFTU-110WBN are the two smallest Elite Fire Tube Ultra heating-only boilers and share the identical 110 lb shipping package, the 1.4 gal water content and the same venting. The 85 is the line's only 96% DOE AFUE model (85 MBH ceiling); the 110 fires to 110 MBH at 95% DOE AFUE with a net AHRI water rating of 88 MBH against 69 MBH.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | HTP EFTU-85WBN | HTP EFTU-110WBN |
|---|---|---|
| Central-heating input, minimum (natural gas) | 8.5 MBH | 11 MBH |
| Central-heating input, maximum (natural gas) | 85 MBH | 110 MBH |
| DOE AFUE | 96 % | 95 % |
| Heating capacity (DOE) | 79 MBH | 101 MBH |
| Net AHRI rating, water | 69 MBH | 88 MBH |
| Shipping weight | 110 lb | 110 lb |
| Approximate full boiler weight | 107 lb | 107 lb |
| Boiler water content | 1.4 gal | 1.4 gal |
| Venting | Exhaust 2" (6–100 ft) or 3" (6–150 ft); intake 2" (0–100 ft) or 3" (0–150 ft) | Exhaust 2" (6–100 ft) or 3" (6–150 ft); intake 2" (0–100 ft) or 3" (0–150 ft) |
Both are wall-hung heating-only models of the Elite Fire Tube Ultra line with the SA-240-S43932 vertical fire-tube heat exchanger, a 10:1 turndown, ECM pump and AristonThermo GALEVO2 control. Shipping weight is 110 lb on both (107 lb approximate full weight) with 1.4 gal of boiler water content, in the 19.75 x 38.25 x 17 in cabinet.
The EFTU-85WBN fires 8,500–85,000 BTU/hr and prints 96% DOE AFUE — the best figure in the EFTU table — with 79 MBH DOE heating capacity and a 69 MBH net AHRI water rating. The EFTU-110WBN fires 11,000–110,000 BTU/hr at 95% DOE AFUE, with 101 MBH DOE heating capacity and 88 MBH net AHRI.
Venting is common: exhaust 2" (6–100 ft) or 3" (6–150 ft), intake 2" (0–100 ft) or 3" (0–150 ft) in PVC, CPVC, polypropylene or stainless steel; the 3" diameter is mandatory only on the 199 sizes. The choice between the two is the heat-loss calculation against the 85's efficiency edge.
The HTP EFTU-85WBN is the 85 MBH class wall-hung heating-only model of the Elite Fire Tube Ultra line: 8.5 to 85 MBH central-heating input at 96% DOE AFUE, 79 MBH DOE heating capacity and a 110 lb shipping weight.
The HTP EFTU-110WBN is the 110 MBH class wall-hung heating-only model of the Elite Fire Tube Ultra line: 11.0 to 110 MBH central-heating input at 95% DOE AFUE, 101 MBH DOE heating capacity and a 110 lb shipping weight.
The EFTU-85WBN prints 96% DOE AFUE against 95% for the EFTU-110WBN — it is the only EFTU model at 96% in the official table.
Yes — the official table prints 110 lb shipping weight and 107 lb approximate full weight for both, with 1.4 gal water content each.
When the heat-loss calculation needs more than the 85's 79 MBH DOE heating capacity on a design day; the 110 lifts the ceiling to 101 MBH at one point of printed AFUE.
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 8, 2026. Last updated September 8, 2026. Technical reviewer: not yet assigned.