Peerless Boilers · Series MI-e
Peerless Series MI-e MI-e-04
The Peerless Series MI-e MI-e-04 is a 105 MBH mid-small size of the 84%-class cast-iron gas water line: a fixed 105 MBH input for 89 MBH heating capacity and a 77 MBH net water rating at 84.6% AFUE, with 6 US gallons of boiler water content, on the Hydrostat IC natural-draft platform.
Key figures
- Max input
- —
- Max CSA output
- —
- AFUE
- 84.6 %
- Min input
- —
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Peerless Series MI-e MI-e-04 in practice
The Series MI-e MI-e-04 is a fixed-input cast-iron gas hot water boiler rated at 105 MBH input with 89 MBH heating capacity and a 77 MBH net water rating (piping and pickup allowance 1.15) at 84.6% AFUE per the ratings table on the product page. Boiler water content is 6 US gallons (22.71 L).
It is fully packaged for natural draft chimney applications with spark ignition, an integral low water cut-off and boiler reset supplied by the Hydrostat IC integrated boiler control, two circulator outputs for domestic hot water priority or a heating zone, a front-facing integral draft diverter, and standard flame rollout shut-off switch, vent safety switch, automatic vent damper and temperature-pressure gauge (product page).
Boilers.ca documents this size at model level; no official Canadian-sales statement was found, so canadianStatus stays 'unknown'. Installation, gas, combustion and venting work belongs with a licensed contractor against I&O manual MI8093-R8 (2/26).
Best suited to
- Homes with a chimney-vented design load near 105 MBH input
- Replacement projects matching a fixed-input cast-iron boiler with a Hydrostat IC control
- Owners comparing MI-e sizes against the sibling Series MI-x range
Applicability and support
- Model number
- MI-e-04
- Canadian availability
- unknown
- Production status
- current
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Not verified
Where ROMA provides on-site service
On-site service is currently offered in Greater Vancouver, BC, including Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Port Coquitlam, Port Moody, Delta, Langley, Maple Ridge, Abbotsford, Chilliwack, White Rock, Pitt Meadows, Tsawwassen, Anmore, Lions Bay, Belcarra, Bowen Island, Mission. Everything else on this site is reference information you can use anywhere in Canada.
Specifications
Published specifications
Values as published by Peerless Boilers. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input | 105 MBH | Fixed input per the Series MI-e ratings table on the product page (water content table). |
| Output | ||
| Heating capacity | 89 MBH | Heating capacity per the Series MI-e ratings table on the product page. |
| Net water rating | 77 MBH | Net water rating based on a piping and pickup allowance of 1.15 per the product page ratings table. |
| Efficiency | ||
| Efficiency (AFUE) | 84.6 % | AFUE per the Series MI-e ratings table on the product page; the line meets the DOE-2021 minimum efficiency requirement per the product page. |
| Domestic hot water | ||
| Domestic hot water | Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater | |
| Venting and air | ||
| Venting | Natural draft into an approved chimney | Natural draft chimney boiler with a front-facing integral draft diverter; automatic vent damper and vent safety switch standard (product page). |
| Physical and connections | ||
| Boiler water content | 6 gal | Boiler water content 6 US gallons (22.71 L) per the water content table on the product page. |
| Operating limits and other | ||
| Fuel | Natural gas or LP gas | Gas-fired (natural or LP) per the product page. |
| Control | Hydrostat IC Integrated Boiler Control | Spark ignition, low water cut-off and boiler reset with two circulator outputs for DHW priority/heating zone (product page). |
Manuals
- Series MI-e Installation, Operation & Maintenance Manual (MI8093-R8, 2/26)MI8093-R8 · 2026-02
Alerts documented for this model
None documented yet.
Frequently asked questions
What are the MI-e-04's ratings?
105 MBH fixed input, 89 MBH heating capacity and a 77 MBH net water rating at 84.6% AFUE per the product page ratings table.
Does the MI-e-04 need a chimney?
Yes — the MI-e is a natural draft boiler for approved chimney applications, with a front-facing integral draft diverter and a standard automatic vent damper.
Is the MI-e DOE-2021 compliant?
The product page states the Series MI-e is 84% AFUE and meets the Department of Energy 2021 minimum efficiency requirement.
Questions about the Peerless Series MI-e MI-e-04?
Describe what the boiler is doing and get a straight answer about the next step.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Compare and explore
- Peerless Series MI-e MI-e-03 vs MI-e-04Comparison
- Peerless Series MI-e MI-e-04 vs MI-e-05Comparison
- Peerless Series MI-e MI-e-03Same series
- Peerless Series MI-e MI-e-05Same series
- Peerless Series MI-e MI-e-06Same series
- Peerless Series MI-e MI-e-07Same series
- Peerless Series MI-e MI-e-08Same series
- Peerless Series MI-e MI-e-09Same series
- Series MI-e series hub
- Buying guide
Sources and verification
- Peerless Boilers — Series MI-e product page (ratings and water content table) · accessed September 9, 2026
- Series MI-e Installation, Operation & Maintenance Manual, MI8093-R8 (2/26) (PDF) · MI8093-R8 · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.