Peerless Boilers · Series PBC (Peerless Combi)
Peerless Series PBC PBC-40
The Peerless Series PBC PBC-40 is the 10:1-turndown middle size in the current combi range: space heating at 15.5–100 MBH input with a DHW side firing 15.5–155 MBH, delivering 4 GPM at a 70°F rise at 95.2% AFUE on the wall-hung stainless platform.
Key figures
- Max input
- 100 MBH
- Max CSA output
- —
- AFUE
- 95.2 %
- Min input
- 15.5 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Peerless Series PBC PBC-40 in practice
The Series PBC PBC-40 is a wall-hung, stainless-steel gas condensing combination boiler rated 95.2% AFUE (ENERGY STAR certified per the product page). Its cut-sheet ratings show space-heating (CH) input of 15.5–100 MBH and DHW input of 15.5–155 MBH, with 4 GPM of DHW output at a 70°F rise and a 10.0:1 turndown ratio; I&O manual Table 12.2 (PBC8013-R5) prints 95.1 MBH heating capacity and a 80.9 MBH net rating for the model.
The boiler measures 16-13/16" × 18-3/16" × 30-11/16" (A × B × C) per the dimension table and connects into a direct-vent system using 2" or 3" piping in PVC, CPVC, polypropylene or AL29-4C stainless. The domestic circuit carries a 4.75 GPM flow restrictor, DHW demand starts at a 0.30 GPM draw, and DHW flow is limited to 6.5 GPM or below per the I&O manual. Above 2,000 ft the boiler de-rates 3.5% per additional 1,000 ft.
The product page claims a one-year parts-and-labour warranty (upon product registration) and a 12-year limited heat exchanger warranty for residential use. Boilers.ca documents the PBC-40 at model level; no official Canadian-sales statement was found, so canadianStatus stays 'unknown', and installation, gas and venting work belongs with a licensed contractor.
Best suited to
- Homes whose heat-loss calculation fits 100 MBH of space heating
- Households whose hot-water peaks fit within 4 GPM at a 70°F rise (size up for heavier simultaneous draws)
- Replacement projects wanting one wall-hung appliance for heat and DHW
Applicability and support
- Model number
- PBC-40
- 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 | ||
| Space-heating (CH) input, minimum | 15.5 MBH | Minimum CH input per the Series PBC ratings (cut sheet CUT-PBC R2; I&O manual Table 12.2). |
| Space-heating (CH) input, maximum | 100 MBH | Maximum CH input per the Series PBC ratings (cut sheet; I&O manual Table 12.2). |
| DHW input, minimum | 15.5 MBH | Minimum domestic hot water input per the Series PBC ratings (cut sheet). |
| DHW input, maximum | 155 MBH | Maximum domestic hot water input per the Series PBC ratings (cut sheet). |
| Output | ||
| Heating capacity | 95.1 MBH | Heating capacity per I&O manual Table 12.2 (PBC8013-R5). |
| Net rating | 80.9 MBH | Net rating per I&O manual Table 12.2 (PBC8013-R5). |
| Efficiency | ||
| Efficiency (AFUE) | 95.2 % | AFUE per the cut sheet and I&O manual Table 12.2; ENERGY STAR certified per the product page. |
| Domestic hot water | ||
| DHW output at 70°F rise | 4 GPM | DHW output at a 70°F rise per the cut-sheet ratings; DHW flow rate is limited to 6.5 GPM or below and a 0.30 GPM draw initiates DHW demand per the I&O manual. |
| Domestic hot water | Integrated combi boiler: space heating plus on-demand domestic hot water | Domestic hot water via the isothermic/stainless heat exchanger arrangement with a 4.75 GPM flow restrictor installed (I&O manual). |
| Venting and air | ||
| Venting | Direct vent, 2" or 3" piping | Direct-vent sealed combustion using 2" or 3" piping in PVC, CPVC, polypropylene or AL29-4C stainless (product page and cut sheet). |
| Physical and connections | ||
| Dimensions (A × B × C) | 16-13/16" × 18-3/16" × 30-11/16" | Boiler dimensions per the Series PBC dimension table (I&O manual Table 12.1); width 16-13/16" per the cut sheet. |
| Operating limits and other | ||
| Turndown ratio | 10.0:1 | Turndown ratio per the cut-sheet ratings. |
| Fuel | Natural gas or LP gas | Natural or LP gas per the product page; models carry no fuel letter and are field configured per the conversion literature. |
| Control | PBC control with easy-to-follow set-up and service menu | Product page: easy-to-follow control menu for set-up and service; diagnostics per I&O manual Section 10. |
Manuals
- Series PBC Combination Gas Boilers — Installation, Operation & Maintenance Manual (PBC8013-R5, 3/24)PBC8013-R5 · 2024-03
- Series PBC Cut Sheet (CUT-PBC R2, 8/22)CUT-PBC R2 · 2022-08
Alerts documented for this model
Frequently asked questions
How much hot water does the PBC-40 deliver?
Up to 4 GPM at a 70°F rise with DHW input firing to 155 MBH; actual delivery depends on incoming water temperature, and the I&O manual limits DHW flow to 6.5 GPM or below.
What are the PBC-40's space-heating ratings?
15.5–100 MBH CH input with 95.1 MBH heating capacity and a 80.9 MBH net rating at 95.2% AFUE per the cut sheet and I&O manual Table 12.2.
Does the Series PBC need a chimney?
No — it is a direct-vent sealed-combustion combi boiler using 2" or 3" approved vent pipe (PVC, CPVC, polypropylene or AL29-4C stainless).
Questions about the Peerless Series PBC PBC-40?
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.
Sources and verification
- Peerless Boilers — Peerless Combi (Series PBC) product page · accessed September 9, 2026
- Series PBC Combination Gas Boilers — Installation, Operation & Maintenance Manual, PBC8013-R5 (3/24) (PDF) · PBC8013-R5 · accessed September 9, 2026
- Series PBC Cut Sheet, CUT-PBC R2 (8/22) (PDF) · CUT-PBC R2 · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.