Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
Both the Peerless PureFire PF-140 and the Peerless PureFire PF-200 belong to the Peerless Boilers PureFire line of condensing boilers. Published ratings: Peerless PureFire PF-140 at 35–140 MBH input, 131 MBH heating capacity and 95% AFUE; Peerless PureFire PF-200 at 42–199 MBH input, 185 MBH heating capacity and 95% AFUE. Peerless PureFire PF-200 lists 59 MBH more input than Peerless PureFire PF-140 (199 MBH against 140 MBH). Both list the same published AFUE of 95%. Peerless PureFire PF-200 lists 47 lb more shipping weight than Peerless PureFire PF-140 (165 lb against 118 lb).
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Peerless PureFire PF-140 | Peerless PureFire PF-200 |
|---|---|---|
| Input, minimum | 35 MBH | 42 MBH |
| Input, maximum | 140 MBH | 199 MBH |
| Heating capacity | 131 MBH | 185 MBH |
| Net water rating | 114 MBH | 161 MBH |
| Efficiency (AFUE) | 95 % | 95 % |
| Domestic hot water | Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater | Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater |
| Approx. shipping weight | 118 lb | 165 lb |
| Dimensions (A × B × C) | 19-3/8" × 17-3/16" × 29-1/2" | 16-3/4" × 17-3/16" × 40-1/2" |
| Exhaust vent / air intake | 3" | 3" |
| Approved vent materials | PVC, CPVC, AL29-4C stainless or polypropylene (Category IV, positive pressure) | PVC, CPVC, AL29-4C stainless or polypropylene (Category IV, positive pressure) |
| Supply/return connections | 1" NPT | 1" NPT |
| Gas connection | 1/2" NPT | 3/4" NPT |
| Electrical | 120 VAC, 60 Hz; max total service current to boiler 3.15 A | 120 VAC, 60 Hz; max total service current to boiler 22.67 A |
| Control | PureFire control with plain-English LCD display | PureFire control with plain-English LCD display |
| Fuel | Natural gas or LP gas | Natural gas or LP gas |
Published ratings: the Peerless PureFire PF-140 is rated 35–140 MBH input, 131 MBH heating capacity and 95% AFUE; the Peerless PureFire PF-200 is rated 42–199 MBH input, 185 MBH heating capacity and 95% AFUE. Peerless PureFire PF-200 lists 59 MBH more input than Peerless PureFire PF-140 (199 MBH against 140 MBH). Both list the same published AFUE of 95%.
Peerless PureFire PF-200 lists 47 lb more shipping weight than Peerless PureFire PF-140 (165 lb against 118 lb). The dimensions differs: the Peerless PureFire PF-140 lists 19-3/8" × 17-3/16" × 29-1/2", while the Peerless PureFire PF-200 lists 16-3/4" × 17-3/16" × 40-1/2". The gas connection differs: the Peerless PureFire PF-140 lists 1/2" NPT, while the Peerless PureFire PF-200 lists 3/4" NPT. The electrical requirement differs: the Peerless PureFire PF-140 lists 120 VAC, 60 Hz; max total service current to boiler 3.15 A, while the Peerless PureFire PF-200 lists 120 VAC, 60 Hz; max total service current to boiler 22.67 A.
Both records print the same AFUE (95%), domestic-hot-water arrangement (Heating-only boiler — domestic hot water comes from a separate indirect tank or water heater), venting (3") and approved vent materials (PVC, CPVC, AL29-4C stainless or polypropylene (Category IV, positive pressure)), per the cited sources.
Peerless Boilers
The Peerless PureFire PF-140 fires 35 to 140 MBH input with 131 MBH heating capacity and a 114 MBH net water rating at 95% AFUE — the top size in the small-cabinet group (PF-50/PF-80/PF-110/PF-140) — on the stainless-steel, sealed-combustion direct-vent condensing platform.
Peerless Boilers
The Peerless PureFire PF-200 fires 42 to 199 MBH input with 185 MBH heating capacity and a 161 MBH net water rating at 95% AFUE — the first of the two large cabinet sizes (21 × 24 × 48 inch carton) with a 199 MBH cap — on the stainless-steel, sealed-combustion direct-vent condensing platform.
The Peerless PureFire PF-200 lists 199 MBH, against 140 MBH on the Peerless PureFire PF-140, per the cited documentation.
Both list the same AFUE of 95%.
It ships at 165 lb against 118 lb for the Peerless PureFire PF-140, 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.