Johnston Boiler Company · Series
Johnston Boiler Company 309 Series
The Johnston 309 Series is a packaged firetube boiler documented in Johnston's current product tree for industrial and commercial steam and hot water service.
Series facts
- Type
- non-condensing
- Efficiency
- Unknown
- Fuel
- Packaged with Johnston burners available in gas, oil and combination gas/oil designs.
- Venting
- Unknown
- Models documented
- 0
- Warranty
- Not verified
About the 309 Series
The 309 Series appears in Johnston's current product navigation and product sitemap as one of the company's packaged boiler lines, alongside the 509 Series, XID Scotch Marine, 358 Ohio Special and WHR Series.
Boilers.ca records the series for identification from the official product tree; no separate capacity table was retrieved from the product page at the time of writing, so no per-model ratings are printed. No official Canadian-sales statement was found.
Highlights
- Listed in Johnston's current product tree as '309 Series Boiler'
- Packaged water-back firetube construction per the Products overview
- Recorded for identification; no per-model ratings printed without an official table
Models
309 Series models
One canonical page per model with input, output and efficiency kept separate.
Error codes and alerts
309 Series 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 Johnston Boiler Company boilers
Frequently asked questions
What is the Johnston 309 Series?
It is one of the packaged boiler lines in Johnston's current product tree, alongside the 509 Series, XID, 358 Ohio Special and WHR Series.
Does Boilers.ca print 309 Series ratings?
No. No capacity table was retrieved from the official product page during research, so the series is recorded for identification only.
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
- Johnston — Products (309 Series Boiler listing) · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.