Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The FTCW140 and FTCW199 are the two FT Series Wall combi models and are the same combination boiler at two size steps: 140,000 against 199,000 BTU/h as printed in Document 1487C. Both integrate domestic hot water, run the combi code table (with DHW and mixing-valve entries) and share the natural-gas factory configuration.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Laars FTCW140 | Laars FTCW199 |
|---|---|---|
| Maximum input (as printed) | 140 MBH | 199 MBH |
| Fuel | Natural gas or propane | Natural gas or propane |
| Domestic hot water | Integrated — the combi version produces domestic hot water in the combination boiler | Integrated — the combi version produces domestic hot water in the combination boiler |
| Error reporting | Two-digit numeric codes with Soft Lock and Hard Lock classes per Section 6.1 of the installation manual | Two-digit numeric codes with Soft Lock and Hard Lock classes per Section 6.1 of the installation manual |
Both FTCW models are the combination versions of the wall-hung FT condensing platform — domestic hot water is produced by the combi itself, and both are documented in the FTCW installation manual, Document 1487C, with natural gas as the factory configuration and propane field-convertible.
The two share the combi's code table, which adds DHW-side entries such as the DHW outlet sensor (32) and mixing-valve codes 66 and 68 to the shared two-digit FT family, each with Soft Lock or Hard Lock recovery. Nothing in the diagnostics differs between the size steps.
The only documented difference is the input printed on the manual cover: 140,000 BTU/h on the FTCW140 against 199,000 BTU/h on the FTCW199. Both the space-heating load and the hot-water demand must fit the chosen size, so the FTCW199 earns its place when the heat-loss calculation plus combi hot-water duty approaches the top step.
Laars Heating Systems
The Laars FTCW140 is the smaller FT Series Wall combination boiler: a wall-hung condensing combi rated 140,000 BTU/h on its manual cover (Document 1487C) with integrated domestic hot water and the FTCW combi code table.
Laars Heating Systems
The Laars FTCW199 is the largest FT Series Wall combination boiler: a wall-hung condensing combi rated 199,000 BTU/h on its manual cover (Document 1487C) with integrated domestic hot water, on the NGTB-900CP control.
They are two size steps of the same wall-hung combi design sharing one manual (Document 1487C); the parts and rating scale with the size. The documented difference is 140,000 versus 199,000 BTU/h.
Yes. Both use the FTCW combi table from Document 1487C, which includes DHW outlet sensor and mixing-valve entries (such as codes 32, 66 and 68) alongside the shared two-digit FT codes.
When the combined space-heating and hot-water demand needs more than the 140 step can deliver. Both models behave identically below that point, so sizing follows the load calculation, not floor area.
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 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.