Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
Utica MGC-8D and Utica MGC-9D are two non-condensing boilers from the Utica Boilers MGC Series 4 (MGC-8D/9D) line. Published ratings: Utica MGC-8D at 262 MBH input, 221 MBH heating capacity and 84% AFUE; Utica MGC-9D at 299 MBH input, 252 MBH heating capacity and 84% AFUE. Utica MGC-9D lists 37 MBH more input than Utica MGC-8D (299 MBH against 262 MBH). Both list the same published AFUE of 84%.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Utica MGC-8D | Utica MGC-9D |
|---|---|---|
| Input | 262 MBH | 299 MBH |
| Heating capacity | 221 MBH | 252 MBH |
| AFUE | 84 % | 84 % |
| Dimensions (W x H x D) | 27½ × 36⅜ × 26½ | 30¾ × 36⅜ × 26½ |
| Venting | Atmospheric chimney vent — integral draft diverter with automatic vent damper | Atmospheric chimney vent — integral draft diverter with automatic vent damper |
| Net AHRI water rating | 192 MBH | 219 MBH |
| Recommended expansion tank | 60 gal | 60 gal |
| Flue connection | 7" | 7" |
| Burners | 7 | 8 |
| Boiler water content | 12.7 gal | 14.4 gal |
| Shipping weight | 552 lb | 616 lb |
| Connections | Water return and supply 1¼" NPT; gas ½" NPT; 120 V AC, <12 A | Water return and supply 1¼" NPT; gas ½" NPT; 120 V AC, <12 A |
| Heat exchanger | Cast iron with cast-iron push nipples | Cast iron with cast-iron push nipples |
| Control | Hydrolevel FuelSmart control with built-in LWCO, digital display and diagnostics | Hydrolevel FuelSmart control with built-in LWCO, digital display and diagnostics |
| Warranty | 20-year non-prorated limited warranty (residential) | 20-year non-prorated limited warranty (residential) |
Published ratings: the Utica MGC-8D is rated 262 MBH input, 221 MBH heating capacity and 84% AFUE; the Utica MGC-9D is rated 299 MBH input, 252 MBH heating capacity and 84% AFUE. Utica MGC-9D lists 37 MBH more input than Utica MGC-8D (299 MBH against 262 MBH). Both list the same published AFUE of 84%.
The dimensions differs: the Utica MGC-8D lists 27½ × 36⅜ × 26½, while the Utica MGC-9D lists 30¾ × 36⅜ × 26½. The burners differs: the Utica MGC-8D lists 7, while the Utica MGC-9D lists 8. The boiler water content differs: the Utica MGC-8D lists 12.7 gal, while the Utica MGC-9D lists 14.4 gal.
Both records print the same AFUE (84%), venting (Atmospheric chimney vent — integral draft diverter with automatic vent damper), recommended expansion tank (60 gal) and flue connection (7"), per the cited sources.
Utica Boilers
The Utica MGC-8D is a size in the current MGC Series 4 cast-iron water line: 262 MBH fixed input, 221 MBH heating capacity, a 192 MBH net AHRI water rating and 84.0% AFUE, with chimney venting, a 7" flue and 7 burners. Its card carries the official 'Current' and 'Available in Canada' tags.
Utica Boilers
The Utica MGC-9D is a size in the current MGC Series 4 cast-iron water line: 299 MBH fixed input, 252 MBH heating capacity, a 219 MBH net AHRI water rating and 84.0% AFUE, with chimney venting, a 7" flue and 8 burners. Its card carries the official 'Current' and 'Available in Canada' tags.
The Utica MGC-9D lists 299 MBH, against 262 MBH on the Utica MGC-8D, per the cited documentation.
Both list the same AFUE of 84%.
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.