Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The Peerless Series MI MI-06 and Peerless Series MI MI-07 are both non-condensing boilers in the Peerless Boilers Series MI line. The Peerless Series MI MI-06 is rated 175 MBH input, 143 MBH heating capacity and 82% AFUE, and the Peerless Series MI MI-07 is rated 195 MBH input, 160 MBH heating capacity and 82% AFUE. Peerless Series MI MI-07 lists 20 MBH more input than Peerless Series MI MI-06 (195 MBH against 175 MBH). Both list the same published AFUE of 82%.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Peerless Series MI MI-06 | Peerless Series MI MI-07 |
|---|---|---|
| Input | 175 MBH | 195 MBH |
| Heating capacity | 143 MBH | 160 MBH |
| Net water rating | 124 MBH | 139 MBH |
| Efficiency (AFUE) | 82 % | 82 % |
| Domestic hot water | Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater | Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater |
| Boiler water content | 8.56 gal | 9.84 gal |
| Venting | Natural draft into a conventional chimney | Natural draft into a conventional chimney |
| Ignition and controls | Spark pilot ignition | Spark pilot ignition |
| Fuel | Natural gas or LP gas | Natural gas or LP gas |
Published ratings: the Peerless Series MI MI-06 is rated 175 MBH input, 143 MBH heating capacity and 82% AFUE; the Peerless Series MI MI-07 is rated 195 MBH input, 160 MBH heating capacity and 82% AFUE. Peerless Series MI MI-07 lists 20 MBH more input than Peerless Series MI MI-06 (195 MBH against 175 MBH). Both list the same published AFUE of 82%.
The boiler water content differs: the Peerless Series MI MI-06 lists 8.56 gal, while the Peerless Series MI MI-07 lists 9.84 gal.
Both records print the same AFUE (82%), domestic-hot-water arrangement (Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater), venting (Natural draft into a conventional chimney) and control (Spark pilot ignition), per the cited sources.
Peerless Boilers
The Peerless Series MI MI-06 is a 175 MBH mid-large size of the legacy cast-iron gas water line: 175 MBH fixed input for 143 MBH heating capacity and a 124 MBH net water rating at 82% AFUE, with 8.56 US gallons of boiler water content, on the natural-draft chimney platform.
Peerless Boilers
The Peerless Series MI MI-07 is a 195 MBH large size of the legacy cast-iron gas water line: 195 MBH fixed input for 160 MBH heating capacity and a 139 MBH net water rating at 82% AFUE, with 9.84 US gallons of boiler water content, on the natural-draft chimney platform.
The Peerless Series MI MI-07 lists 195 MBH, against 175 MBH on the Peerless Series MI MI-06, per the cited documentation.
Both list the same AFUE of 82%.
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.