Peerless Boilers · Series
Peerless Boilers Series PSCII
The Series PSCII is Peerless' current residential cast-iron, sealed-combustion direct-vent gas hot water boiler for homes without a usable chimney: four sizes PSC II-03 through PSC II-06 at 65–150 MBH input, 56–128 MBH output and up to 86% AFUE, backed by the Peerless non-prorated lifetime heat exchanger warranty claim.
Series facts
- Type
- non-condensing
- Efficiency
- 86% AFUE
- Fuel
- Natural or LP gas: the product page lists the PSCII as gas-fired (natural or LP).
- Venting
- Sealed combustion, direct vent: the product page describes a fully packaged sealed-combustion boiler for homes where a chimney is inadequate or unavailable; direct-vent pipe removes flue gases without a conventional chimney.
- Models documented
- 0
- Warranty
- Not verified
The in-page ratings table prints 86.0% AFUE (PSC II-03) and 85.0–85.1% AFUE (PSC II-04 through -06); the product page headlines 'up to 86%' AFUE.
About the Series PSCII
The Series PSCII is Peerless' sealed-combustion direct-vent residential gas boiler, listed under Residential Boilers – Gas Boilers on the official site. The product page positions it for homes where a chimney is inadequate or unavailable: the boiler is fully packaged and ready to install, fires natural or LP gas over 65–150 MBH input (56–128 MBH output), and is backed by what the page calls the Peerless non-prorated lifetime warranty on the heat exchanger.
The ratings table on the product page covers four sizes — PSC II-03 (65 MBH input, 56 MBH heating capacity, 48 MBH net water rating, 86.0% AFUE), PSC II-04 (90/77/67, 85.0%), PSC II-05 (120/102/89, 85.0%) and PSC II-06 (150/128/111, 85.1%) — with net water ratings based on a piping and pickup allowance of 1.15 and boiler water content of 4.72–8.56 US gallons per the in-page table.
Boilers.ca records the PSCII as a hub with the official I&O manual (PSC8078-REV4) linked; the individual PSC II sizes are not published as separate model pages. No official Canadian-sales statement was found — research reviewed US-site data only — so canadianStatus stays 'unknown'.
Highlights
- Current Peerless sealed-combustion residential gas water line: PSC II-03 to PSC II-06 (65–150 MBH input)
- Direct vent with sealed combustion — for homes where a chimney is inadequate or unavailable
- Up to 86% AFUE; table prints 85.0–86.0% AFUE across the four sizes
- Net water ratings 48–111 MBH (1.15 allowance); water content 4.72–8.56 gal (in-page table)
- Peerless non-prorated lifetime heat exchanger warranty claim (product page)
- Hub-only documentation; I&O manual PSC8078-REV4 linked here
Models
Series PSCII models
One canonical page per model with input, output and efficiency kept separate.
Error codes and alerts
Series PSCII alerts
No alerts documented for this series yet.
Manuals
Official documents
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.
Services for Peerless Boilers boilers
Frequently asked questions
Is the Series PSCII available in Canada?
No official Canadian-sales statement was found in the official pages and manuals reviewed on September 9, 2026 (US-site data only), so canadianStatus is recorded as 'unknown'. Confirm supply through a licensed distributor.
Why would a home choose the PSCII over the Series MI-e?
The MI-e is a natural-draft chimney boiler while the PSCII is a sealed-combustion direct-vent unit, so the PSCII suits homes where a chimney is inadequate or unavailable; its input range is 65–150 MBH compared with the MI-e's 70–280 MBH.
What sizes does the PSCII come in?
Four: PSC II-03, PSC II-04, PSC II-05 and PSC II-06 at 65, 90, 120 and 150 MBH input with 48–111 MBH net water ratings per the ratings table on the product page.
Talk to a boiler technician
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 — Series PSCII product page (ratings and dimension tables) · accessed September 9, 2026
- Series PSCII Installation, Operation & Maintenance Manual, PSC8078-REV4 (PDF) · PSC8078-REV4 · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.