Laars Heating Systems · MagnaTherm FT
Laars MagnaTherm FT CFH1000
The Laars MagnaTherm FT CFH1000 is a commercial condensing firetube boiler rated 67-999.9 MBH input and 63-950 MBH output at 95.8% thermal efficiency with 15:1 turndown.
Key figures
- Max input
- 999.9 MBH
- Max CSA output
- 950 MBH
- AFUE
- —
- Min input
- 67 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Laars MagnaTherm FT CFH1000 in practice
The MagnaTherm FT CFH1000 is the 999.9 MBH size of Laars' high-turndown condensing firetube boiler — a boiler-only line with no volume water heater version — documented in the Document 1460 submittal and the Document 1462 I&O. The submittal sizing table lists 67-999.9 MBH input, 63-950 MBH output, 95.8% thermal efficiency, 96.1% combustion efficiency and a 15:1 turndown ratio, with 76 gallons of water content and a 1450 lb shipping weight.
The FT uses a stainless firetube heat exchanger with Laars CF-Tech contoured flue tubes, which create turbulent flow for even heat transfer and let the exchanger flex under thermal cycling, and the Tru Trac O2 trim system manages the fuel-to-air ratio in real time across the range. It runs on the Laars Linc touchscreen control with cascade up to eight units and Vari-Prime pump control, and its venting is Category II or Category IV per the brochure, with Canadian installations requiring exhaust vent pipe certified to ULC S636.
Best suited to
- Commercial hydronic loads near 999.9 MBH input
- Plants that prefer a firetube heat exchanger over water-tube
- Projects needing 15:1-20:1 modulation with O2 trim
Applicability and support
- Model number
- CFH1000
- Canadian availability
- available
- 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 Laars Heating Systems. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input, minimum | 67 MBH | Per the Document 1460 MagnaTherm FT submittal sizing table. |
| Input, maximum | 999.9 MBH | Per the Document 1460 MagnaTherm FT submittal sizing table. |
| Output | ||
| Output, minimum | 63 MBH | Per the Document 1460 MagnaTherm FT submittal sizing table. |
| Output, maximum | 950 MBH | Per the Document 1460 MagnaTherm FT submittal sizing table. |
| Efficiency | ||
| Efficiency (thermal) | 95.8 % | Per the Document 1460 MagnaTherm FT submittal sizing table. |
| Efficiency (combustion) | 96.1 % | Per the Document 1460 MagnaTherm FT submittal sizing table. |
| Physical and connections | ||
| Shipping weight | 1,450 lb | Product weight 1300 lb, operating weight 1934 lb per the submittal. |
| Water content | 76 gal | Per the Document 1460 MagnaTherm FT submittal. |
| Operating limits and other | ||
| Turndown | 15:1 | Modulation turndown ratio column per the Document 1460 submittal. |
Manuals
Alerts documented for this model
None documented yet.
Frequently asked questions
What are the MagnaTherm FT CFH1000 ratings?
The Document 1460 submittal lists 67-999.9 MBH input, 63-950 MBH output, 95.8% thermal efficiency and a 15:1 turndown ratio.
Is the MagnaTherm FT available in Canada?
The FT brochure's venting notes address Canadian installations directly, requiring exhaust vent pipe certified to ULC S636; confirm current availability with Laars Canada or an authorized distributor.
Does the MagnaTherm FT come as a volume water heater?
No — the FT is a boiler-only line. The MagnaTherm and MagnaTherm HTD are the members of the family offered as both boiler and volume water heater.
Questions about the Laars MagnaTherm FT CFH1000?
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
- Laars — MagnaTherm FT product page · accessed September 9, 2026
- MagnaTherm FT Boiler Submittal, Document 1460 · 1460 · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.