Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
Boilers.ca is a brand of ROMA Heating & Cooling · Licensed gas contractor LGA0202903
Pennco · Series
The Pennco 16 Series is a gas-fired cast-iron steam boiler sold in seven sizes from 1603HSID (75/70 MBH input) to 1609HSID (299/280 MBH) at 82.0–82.7% AFUE, fully assembled with an electronic low-water cut-off, pressure limit control, glass water-level gauge and intermittent pilot ignition.
Series facts
The ratings table prints 82.7% AFUE on the 1603HSID and 82.0% on the 1604HSID through 1609HSID rows.
The 16 Series is Pennco's gas-fired cast-iron steam boiler, published on the official site under Boilers – Gas with the size list '75 - 112 - 150 - 187.5 - 225 - 262.5 - 299 MBH'. The sell sheet describes an assembled boiler with insulated jacket and a completely installed and wired gas control system: titanium composite burners, a gas manifold with orifices, an automatic redundant combination gas valve with pilot filter and regulator, intermittent pilot control with continuous retry and 100% shut-off, a combination pilot burner/electrode/flame sensor and an integral draft diverter. Standard equipment also includes a 24-volt transformer, flame roll-out safety shut-off fuse link, blocked vent safety shut-off (spill switch), electronic low-water cut-off with 3/4-inch probe, pressure limit control, steam pressure gauge, glass water level gauge, 3/4-inch boiler drain valve, 15 psi ASME pop safety valve and two 2-1/2-inch square-head pipe plugs. Electrical requirement is 120 V ac, 60 Hz, single phase, less than 12 amps.
The sell sheet prints AHRI certified ratings as natural-gas/LP pairs: 1603HSID (75/70 MBH input, 62/58 MBH heating capacity, 47/44 MBH net steam, 195/183 sq ft, 82.7% AFUE, 5" flue, 297 lb), 1604HSID (112/105, 91/85, 68/64, 283/267, 82.0%, 6", 368 lb), 1605HSID (150/140, 122/114, 92/86, 383/358, 82.0%, 6", 440 lb), 1606HSID (187/175, 153/143, 115/107, 479/446, 82.0%, 7", 512 lb), 1607HSID (225/210, 183/171, 137/128, 570/533, 82.0%, 7", 584 lb), 1608HSID (262/245, 214/200, 161/150, 670/625, 82.0%, 7", 659 lb) and 1609HSID (299/280, 245/229, 184/172, 766/717, 82.0%, 7", 736 lb). Net steam ratings use a piping and pickup allowance of 1.333, ratings are for sea level to 2,000 feet with a four percent reduction per 1,000 feet above that, and all sizes share a 36-3/8-inch height with 26-1/2-inch depth and widths from 11-1/4 to 30-3/4 inches.
Boilers.ca documents all seven sizes at model level from the sell sheet and links the published IOM, user manual and near-boiler piping guide. 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 1603HSID is the smallest 16 Series size and the only 82.7% AFUE row: 75/70 MBH input (natural gas/LP) with 62/58 MBH heating capacity and a 47/44 MBH net steam rating at 82.7% AFUE.
Pennco
The Pennco 1604HSID is the second 16 Series size: 112/105 MBH input (natural gas/LP) with 91/85 MBH heating capacity and a 68/64 MBH net steam rating at 82% AFUE.
Pennco
The Pennco 1605HSID is the mid-size 16 Series model: 150/140 MBH input (natural gas/LP) with 122/114 MBH heating capacity and a 92/86 MBH net steam rating at 82% AFUE.
Pennco
The Pennco 1606HSID is the first size with a 7-inch flue: 187/175 MBH input (natural gas/LP) with 153/143 MBH heating capacity and a 115/107 MBH net steam rating at 82% AFUE.
Pennco
The Pennco 1607HSID is the fifth 16 Series size: 225/210 MBH input (natural gas/LP) with 183/171 MBH heating capacity and a 137/128 MBH net steam rating at 82% AFUE.
Pennco
The Pennco 1608HSID is the second-largest 16 Series size: 262/245 MBH input (natural gas/LP) with 214/200 MBH heating capacity and a 161/150 MBH net steam rating at 82% AFUE.
Pennco
The Pennco 1609HSID is the largest 16 Series size: 299/280 MBH input (natural gas/LP) with 245/229 MBH heating capacity and a 184/172 MBH net steam rating at 82% AFUE.
| Specification | Pennco 1603HSID | Pennco 1604HSID | Pennco 1605HSID | Pennco 1606HSID | Pennco 1607HSID | Pennco 1608HSID | Pennco 1609HSID |
|---|---|---|---|---|---|---|---|
| input-min | — | — | — | — | — | — | — |
| Input (natural gas / LP) | 75 / 70 MBH | 112 / 105 MBH | 150 / 140 MBH | 187 / 175 MBH | 225 / 210 MBH | 262 / 245 MBH | 299 / 280 MBH |
| output-max | — | — | — | — | — | — | — |
| Efficiency (AFUE) | 82.7 % | 82 % | 82 % | 82 % | 82 % | 82 % | 82 % |
| turndown | — | — | — | — | — | — | — |
| vent-max-3 | — | — | — | — | — | — | — |
| vent-max-2 | — | — | — | — | — | — | — |
| Approx. shipping weight | 297 lb | 368 lb | 440 lb | 512 lb | 584 lb | 659 lb | 736 lb |
Read the full comparison: Pennco 1603HSID vs 1606HSID →
Read the full comparison: Pennco 1603HSID vs Pennco 1604HSID →
Read the full comparison: Pennco 1604HSID vs Pennco 1605HSID →
Read the full comparison: Pennco 1605HSID vs Pennco 1606HSID →
Error codes and alerts
No alerts documented for this series yet.
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: 1603HSID through 1609HSID, covering 75/70 to 299/280 MBH input (natural gas/LP) at 82.0–82.7% AFUE with net steam ratings of 47/44 to 184/172 MBH per the sell sheet.
Standard equipment includes an electronic low-water cut-off with 3/4-inch probe, pressure limit control, steam pressure gauge, glass water level gauge, blocked vent spill switch, flame roll-out fuse link and intermittent pilot control with continuous retry.
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.