Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Pennco · Series
The Pennco 15B-K is a cast-iron, chimney-vented gas water boiler rated 84% AFUE and sold in seven sizes from 15B-060K (59 MBH input) to 15B-235K (235 MBH), with a low-profile draft diverter hood, removable burner tray and internal or Resideo gas-valve configurations.
Series facts
All seven 15B-K rows print 84% AFUE in the sell sheet ratings table.
The Pennco 15B-K is a gas-fired cast-iron water boiler published on the official site under Boilers – Gas with the size list '59, 90.8, 120, 149, 175, 205, 235 MBH'. The sell sheet describes an 84% AFUE boiler with a dependable cast-iron heat exchanger with dry-leg end sections, each heat exchanger water- and pressure-tested before assembly; an internal operating control with a digital display; a low-profile draft diverter hood that reduces installation height by up to 30 inches; and a removable burner tray for easy cleaning and quick access to change orifices for LP gas and high altitude. The model is offered for natural gas or propane.
The sell sheet ratings table prints the seven documented sizes: 15B-060K (59 MBH input, 50 MBH heating capacity, 43 MBH net AHRI, 84% AFUE, 4" flue, 13-3/8" wide, 215 lb), 15B-095K (90.8/76.3/66 MBH, 5", 250 lb), 15B-120K (120/101/88 MBH, 6", 295 lb), 15B-150K (149/125/109 MBH, 6", 335 lb), 15B-175K (175/147/128 MBH, 7", 385 lb), 15B-205K (205/172/150 MBH, 7", 420 lb) and 15B-235K (235/197/171 MBH, 7", 465 lb). Input ratings are for sea level to 2,000 feet and reduce four percent per 1,000 feet above that, and net AHRI water ratings use a 1.15 piping and pickup allowance. All models share a 32-1/8-inch height with depths of 27-1/4 inches (15B-205K/235K 27-3/4 inches).
Two control configurations are documented on the official documents page: an internal gas valve version (IOM Rev. C and User Manual Rev. E) and a Resideo-control version (IOM Rev. D). Boilers.ca documents all seven sizes at model level from the sell sheet and links the published manuals. No official Canadian-sales statement was found, so canadianStatus stays 'unknown'.
Highlights
Pennco Cast Iron Consolidated Boiler Warranty Rev. C is published on the official documents page.
Models
One canonical page per model with input, output and efficiency kept separate.
Pennco
The Pennco 15B-060K is the smallest 15B-K size with a 4-inch flue: 59 MBH input with 50 MBH heating capacity and a 43 MBH net AHRI water rating at 84% AFUE, chimney vented with a 4" flue.
Pennco
The Pennco 15B-095K is the second size, stepping to a 5-inch flue: 90.8 MBH input with 76.3 MBH heating capacity and a 66 MBH net AHRI water rating at 84% AFUE, chimney vented with a 5" flue.
Pennco
The Pennco 15B-120K is the mid-size 15B-K with a 6-inch flue: 120 MBH input with 101 MBH heating capacity and a 88 MBH net AHRI water rating at 84% AFUE, chimney vented with a 6" flue.
Pennco
The Pennco 15B-150K is the fourth size, sharing the 6-inch flue: 149 MBH input with 125 MBH heating capacity and a 109 MBH net AHRI water rating at 84% AFUE, chimney vented with a 6" flue.
Pennco
The Pennco 15B-175K is the first size with a 7-inch flue: 175 MBH input with 147 MBH heating capacity and a 128 MBH net AHRI water rating at 84% AFUE, chimney vented with a 7" flue.
Pennco
The Pennco 15B-205K is the second-largest 15B-K size: 205 MBH input with 172 MBH heating capacity and a 150 MBH net AHRI water rating at 84% AFUE, chimney vented with a 7" flue.
Pennco
The Pennco 15B-235K is the largest 15B-K size: 235 MBH input with 197 MBH heating capacity and a 171 MBH net AHRI water rating at 84% AFUE, chimney vented with a 7" flue.
| Specification | Pennco 15B-060K | Pennco 15B-095K | Pennco 15B-120K | Pennco 15B-150K | Pennco 15B-175K | Pennco 15B-205K | Pennco 15B-235K |
|---|---|---|---|---|---|---|---|
| input-min | — | — | — | — | — | — | — |
| Input | 59 MBH | 90.8 MBH | 120 MBH | 149 MBH | 175 MBH | 205 MBH | 235 MBH |
| output-max | — | — | — | — | — | — | — |
| Efficiency (AFUE) | 84 % | 84 % | 84 % | 84 % | 84 % | 84 % | 84 % |
| turndown | — | — | — | — | — | — | — |
| vent-max-3 | — | — | — | — | — | — | — |
| vent-max-2 | — | — | — | — | — | — | — |
| Approx. shipping weight | 215 lb | 250 lb | 295 lb | 335 lb | 385 lb | 420 lb | 465 lb |
Read the full comparison: Pennco 15B-060K vs 15B-120K →
Read the full comparison: Pennco 15B-060K vs Pennco 15B-095K →
Read the full comparison: Pennco 15B-095K vs Pennco 15B-120K →
Read the full comparison: Pennco 15B-120K vs Pennco 15B-150K →
Error codes and alerts
Manuals
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 Pennco boilers
Seven sizes: 15B-060K through 15B-235K, covering 59, 90.8, 120, 149, 175, 205 and 235 MBH input at 84% AFUE per the sell sheet.
Yes — the sell sheet states 'For Natural Gas Or Propane' and describes the removable burner tray allowing quick orifice changes for LP gas and high altitude.
No official Canadian-sales statement was found on penncoboilers.com when reviewed on September 9, 2026, so canadianStatus is recorded 'unknown'.
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
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.