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Comparison
Verdict in brief
The Laars MagnaTherm FT CFH1000 and Laars MagnaTherm FT CFH2000 are both condensing boilers in the Laars Heating Systems MagnaTherm FT line. The Laars MagnaTherm FT CFH1000 is documented at 67–999.9 MBH input, 950 MBH output and 95.8% thermal efficiency, while the Laars MagnaTherm FT CFH2000 is documented at 100–1999.9 MBH input, 1,900 MBH output and 95.4% thermal efficiency. Laars MagnaTherm FT CFH2000 lists 1,000 MBH more input than Laars MagnaTherm FT CFH1000 (1999.9 MBH against 999.9 MBH). Laars MagnaTherm FT CFH1000 carries the higher published thermal efficiency at 95.8%, against 95.4%. Laars MagnaTherm FT CFH2000 lists 500 lb more shipping weight than Laars MagnaTherm FT CFH1000 (1,950 lb against 1,450 lb).
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Laars MagnaTherm FT CFH1000 | Laars MagnaTherm FT CFH2000 |
|---|---|---|
| Input, minimum | 67 MBH | 100 MBH |
| Input, maximum | 999.9 MBH | 1,999.9 MBH |
| Output, minimum | 63 MBH | 95 MBH |
| Output, maximum | 950 MBH | 1,900 MBH |
| Efficiency (thermal) | 95.8 % | 95.4 % |
| Turndown | 15:1 | 20:1 |
| Water content | 76 gal | 116 gal |
| Shipping weight | 1,450 lb | 1,950 lb |
| Efficiency (combustion) | 96.1 % | 95.5 % |
Published ratings: the Laars MagnaTherm FT CFH1000 is rated 67–999.9 MBH input, 950 MBH output and 95.8% thermal efficiency; the Laars MagnaTherm FT CFH2000 is rated 100–1999.9 MBH input, 1,900 MBH output and 95.4% thermal efficiency. Laars MagnaTherm FT CFH2000 lists 1,000 MBH more input than Laars MagnaTherm FT CFH1000 (1999.9 MBH against 999.9 MBH). Laars MagnaTherm FT CFH1000 carries the higher published thermal efficiency at 95.8%, against 95.4%.
Laars MagnaTherm FT CFH2000 lists 500 lb more shipping weight than Laars MagnaTherm FT CFH1000 (1,950 lb against 1,450 lb). The turndown differs: the Laars MagnaTherm FT CFH1000 lists 15:1, while the Laars MagnaTherm FT CFH2000 lists 20:1. The boiler water content differs: the Laars MagnaTherm FT CFH1000 lists 76 gal, while the Laars MagnaTherm FT CFH2000 lists 116 gal.
Both models are documented by the official Laars Heating Systems sources cited on their model records; the shared values above are taken from those documents.
Laars Heating Systems
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.
Laars Heating Systems
The Laars MagnaTherm FT CFH2000 is a commercial condensing firetube boiler rated 100-1,999.9 MBH input and 95-1,900 MBH output at 95.4% thermal efficiency with 20:1 turndown.
The Laars MagnaTherm FT CFH2000 lists 1999.9 MBH, against 999.9 MBH on the Laars MagnaTherm FT CFH1000, per the cited documentation.
The Laars MagnaTherm FT CFH1000 carries the higher published thermal efficiency at 95.8%, against 95.4%.
It ships at 1,950 lb against 1,450 lb for the Laars MagnaTherm FT CFH1000, per the cited sources.
A consultation includes a heat-loss review so the size is right the first time.
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.