Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The MagnaTherm HTD 2000 and HTD 2500 are adjacent high-turndown sizes: 100-1,999 versus 125-2,499 MBH input and 1,895 versus 2,374 MBH maximum output, both at 95% boiler thermal efficiency with full 20:1 modulation. The 2500 steps to a larger cabinet with 31 gallons of water content.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Laars MagnaTherm HTD 2000 | Laars MagnaTherm HTD 2500 |
|---|---|---|
| Input, minimum | 100 MBH | 125 MBH |
| Input, maximum | 1,999 MBH | 2,499 MBH |
| Output, minimum | 95 MBH | 119 MBH |
| Output, maximum | 1,895 MBH | 2,374 MBH |
| Efficiency (thermal) | 95 % | 95 % |
| Efficiency (combustion) | 93.6 % | 93.8 % |
| Water content | 22 gal | 31 gal |
| Shipping weight | 1,610 lb | 2,010 lb |
| Turndown | 20:1 | 20:1 |
The Document 1425 submittal lists the HTD 2000 at 100-1,999 MBH input, 95-1,895 MBH output and 95% boiler thermal efficiency; the HTD 2500 lists 125-2,499 MBH input, 119-2,374 MBH output and 95%.
Water content rises from 22 to 31 gallons and shipping weight from 1,610 to 2,010 lb, so the 2500 moves into the larger cabinet class.
Both hold full 20:1 modulation and Tru Trac O2 trim on the MGH water-tube platform with the Laars Linc control.
Laars Heating Systems
The Laars MagnaTherm HTD 2000 is a high-turndown commercial condensing boiler and volume water heater rated 100-1,999 MBH input and 95-1,895 MBH output at 95% boiler thermal efficiency with full 20:1 modulation.
Laars Heating Systems
The Laars MagnaTherm HTD 2500 is a high-turndown commercial condensing boiler and volume water heater rated 125-2,499 MBH input and 119-2,374 MBH output at 95% boiler thermal efficiency with full 20:1 modulation.
100 MBH per the Document 1425 sizing table, against a 1,999 MBH maximum for full 20:1 modulation.
No — the HTD 2000 ships at 1,610 lb with 22 gallons of water content, while the HTD 2500 ships at 2,010 lb with 31 gallons.
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.