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
Comparison
Verdict in brief
Both the Laars Mascot II LMC and the Laars Mascot II LMH belong to the Laars Heating Systems Mascot II (discontinued) line of combination (combi) boilers. The Laars Mascot II LMC is rated 125 MBH input, 115 MBH output and 95% AFUE, and the Laars Mascot II LMH is rated 125 MBH input, 115 MBH output and 95% AFUE. Both list the same published input of 125 MBH. Both list the same published AFUE of 95%. Both list the same published shipping weight of 100 lb.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Laars Mascot II LMC | Laars Mascot II LMH |
|---|---|---|
| Input (as printed) | 125 MBH | 125 MBH |
| Output (as printed) | 115 MBH | 115 MBH |
| Efficiency (AFUE) | 95 % | 95 % |
| Turndown | 5:1 (20%–100% modulation) | 5:1 (20%–100% modulation) |
| Domestic hot water | Integrated — combi model heats domestic water through a stainless steel brazed-plate heat exchanger, up to 4.0 gpm at a 60°F rise and 180°F maximum outlet | None built in — heating-only model; hot water comes from a separate tank or water heater |
| Weight | 100 lb | 100 lb |
| Venting | Two-pipe 2 in or concentric 3/5 in | Two-pipe 2 in or concentric 3/5 in |
| Supply / return connections | 3/4" NPT / 3/4" NPT | 3/4" NPT / 3/4" NPT |
| Gas connection | 1/2" NPT | 1/2" NPT |
| Fuel | Natural gas or propane | Natural gas or propane |
| Pressure relief setting | 30 psi | 30 psi |
Published ratings: the Laars Mascot II LMC is rated 125 MBH input, 115 MBH output and 95% AFUE; the Laars Mascot II LMH is rated 125 MBH input, 115 MBH output and 95% AFUE. Both list the same published input of 125 MBH. Both list the same published AFUE of 95%.
The domestic-hot-water arrangement differs: the Laars Mascot II LMC lists Integrated — combi model heats domestic water through a stainless steel brazed-plate heat exchanger, up to 4.0 gpm at a 60°F rise and 180°F maximum outlet, while the Laars Mascot II LMH lists None built in — heating-only model; hot water comes from a separate tank or water heater.
Both records print the same input (125 MBH), output (115 MBH), AFUE (95%) and turndown (5:1 (20%–100% modulation)), per the cited sources.
Laars Heating Systems
The Laars Mascot II LMC is the discontinued combination version of the 125 MBTU/h Mascot II: 125 MBH input, 115 MBH output, 95.0% AFUE and domestic hot water through a stainless steel brazed-plate heat exchanger at up to 4.0 gpm.
Laars Heating Systems
The Laars Mascot II LMH is the discontinued heating-only version of the 125 MBTU/h Mascot II wall-mounted modulating boiler: 125 MBH input, 115 MBH output and 95.0% AFUE, with no domestic-water production built in.
Yes — both list 125 MBH in the cited documentation.
Both list the same AFUE of 95%.
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.