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Bradford White · Series

Bradford White Atmospheric vent high input (RG250H / RG255H / RG275H / RG2100H)

Bradford White's high-input atmospheric vent gas tanks add 65,000 to 80,000 BTU/h inputs and side space-heating connections to the Defender-style atmospheric line: RG250H6N (48 gal), RG255H6N (55 gal), RG275H6N (75 gal) and RG2100H6N (100 gal), all sold in Canada with a 4 in draft diverter.

Current seriesSold in CanadaGas storage tankNatural gasPropaneresidential
Request service for this seriesReplacement estimate

Series facts

System type
Gas storage tank
Efficiency
UEF 0.63 (medium draw)
Energy
Natural gas models end in N; propane models end in X. Inputs are 65,000 to 80,000 BTU/h.
Venting
4 in (102 mm) "Snap Lock" draft diverter on every model; atmospheric venting into a suitable chimney or B-vent. Units are also listed for space heating with side connections.
Models documented
4
Warranty
Published terms

UEF 0.63 for the 48 US gal RG250H6N per Canadian spec sheet C1108. The 55, 75 and 100 US gal models carry UEF 0.61, 0.59 and 0.57; see each model page.

About the Atmospheric vent high input (RG250H / RG255H / RG275H / RG2100H)

The high-input family covers the recovery gap in Bradford White's Canadian atmospheric range. Where the standard Defender tanks run 27,000 to 50,000 BTU/h, these units step up to 65,000 to 80,000 BTU/h, so the 75 and 100 US gallon models can deliver first-hour ratings of roughly 135 and 157 US gallons. Every model also carries factory 3/4 in side connections listed for space heating, which lets a single atmospheric tank serve both potable water and a hydronic zone in the same home.

Only the RG250H6N carries the Defender Safety System flammable-vapour-ignition-resistant design; the Canadian sheet notes the Defender bullet as applying to that model only. The larger RG255H, RG275H and RG2100H units omit FVIR, use ANSI Z21.10.3 certification (the RG250H6N is Z21.10.1), and add a hand-hole cleanout on the 100 US gallon model. An ASSE-approved thermostatic mixing valve ships with the RG255H6N.

All four models draw combustion air from the room, vent by natural draft through a 4 in draft hood and need no external electricity. UEF ratings run 0.63 down to 0.57 as volume grows; none are ENERGY STAR certified. Whether CANRO stocks a given model for a job is confirmed at consultation.

Highlights

  • 65,000–80,000 BTU/h inputs with recovery from 265 to 322 L/h at a 50 °C rise
  • Side 3/4 in tappings for space-heating applications (potable and space heating listed)
  • 4 in "Snap Lock" draft diverter; no external electricity required
  • Defender FVIR system on the RG250H6N only; ANSI Z21.10.3 on the rest
  • Hand-hole cleanout on the RG2100H6N; ASSE mixing valve included with the RG255H6N
  • 6-year tank and parts limited warranty (10-year variants except RG255H6N); no labour coverage

Bradford White's residential warranty document lists a 6-year limited tank warranty and 6-year limited parts warranty for these models (10-year models change the suffix 6 to 10; not available on the RG255H6N). Labour is not covered; removal and reinstallation charges are excluded. Consumable anode rods are excluded.

Models

Atmospheric vent high input (RG250H / RG255H / RG275H / RG2100H) models

One canonical page per model. Capacity and fuel variants stay on that page.

Bradford White · Gas storage tank

Bradford White RG250H6N

CurrentSold in Canada
Nominal capacity
48 US gal (40 Imp. gal, 182 L)
First-hour delivery
106 US gal (401 L)
Input
65,000 BTU/h

The Bradford White RG250H6N is a 48 US gallon (182 L) atmospheric-vent natural gas storage water heater with a 65,000 BTU/h input, 106 US gallon first-hour rating and UEF 0.63, sold in Canada through wholesale channels. It is the only high-input model that carries the Defender FVIR safety system.

Natural gasPropaneAtmospheric (draft hood)
Specifications, manuals and service

Bradford White · Gas storage tank

Bradford White RG255H6N

CurrentSold in Canada
Nominal capacity
55 US gal (46 Imp. gal, 208 L)
First-hour delivery
117 US gal (443 L)
Input
78,000 BTU/h

The Bradford White RG255H6N is a 55 US gallon (208 L) atmospheric-vent natural gas storage water heater with a 78,000 BTU/h input, 117 US gallon first-hour rating and UEF 0.61, sold in Canada through wholesale channels. An ASSE-approved mixing valve ships with the model.

Natural gasPropaneAtmospheric (draft hood)
Specifications, manuals and service

Bradford White · Gas storage tank

Bradford White RG275H6N

CurrentSold in Canada
Nominal capacity
75 US gal (63 Imp. gal, 284 L)
First-hour delivery
135 US gal (511 L)
Input
76,000 BTU/h

The Bradford White RG275H6N is a 75 US gallon (284 L) atmospheric-vent natural gas storage water heater with a 76,000 BTU/h input, 135 US gallon first-hour rating and UEF 0.59, sold in Canada through wholesale channels. It is the largest residential atmospheric tank that still fits a 26 in jacket.

Natural gasPropaneAtmospheric (draft hood)
Specifications, manuals and service

Bradford White · Gas storage tank

Bradford White RG2100H6N

CurrentSold in Canada
Nominal capacity
100 US gal (83 Imp. gal, 379 L)
First-hour delivery
157 US gal (594 L)
Input
80,000 BTU/h

The Bradford White RG2100H6N is a 100 US gallon (379 L) atmospheric-vent natural gas storage water heater with an 80,000 BTU/h input, 157 US gallon first-hour rating and UEF 0.57, sold in Canada through wholesale channels. It is the largest tank in Bradford White's Canadian residential gas range.

Natural gasPropaneAtmospheric (draft hood)
Specifications, manuals and service

Compare models in this series

Comparison of Bradford White RG250H6N and Bradford White RG255H6N and Bradford White RG275H6N and Bradford White RG2100H6N
SpecificationBradford White RG250H6NGas storage tankBradford White RG255H6NGas storage tankBradford White RG275H6NGas storage tankBradford White RG2100H6NGas storage tank
Rated nominal volume48 US gal (40 Imp. gal, 182 L)55 US gal (46 Imp. gal, 208 L)75 US gal (63 Imp. gal, 284 L)100 US gal (83 Imp. gal, 379 L)
First-hour rating106 US gal (401 L)117 US gal (443 L)135 US gal (511 L)157 US gal (594 L)
Recovery at 90 °F (50 °C) rise70 US gal/h (265 L/h)84 US gal/h (318 L/h)82 US gal/h (310 L/h)85 US gal/h (322 L/h)
Input, natural gas65,000 BTU/h78,000 BTU/h76,000 BTU/h80,000 BTU/h
Uniform Energy Factor (UEF), medium draw0.630.610.590.57
Height to top of heater56 5/8 in (1438 mm)54 3/4 in (1391 mm)59 5/8 in (1514 mm)65 5/16 in (1659 mm)
Jacket diameter22 in (559 mm)24 in (607 mm)26 in (660 mm)28 1/4 in (718 mm)
Shipping weight189 lb (86 kg)210 lb (95 kg)240 lb (109 kg)413 lb (187 kg)

“—” means not applicable to that system type or not published by the manufacturer. Flow figures are only comparable at the same temperature rise; UEF values are only comparable within the same draw pattern.

Fault codes

Atmospheric vent high input (RG250H / RG255H / RG275H / RG2100H) codes and status lights

No codes documented for this series yet.

Manuals

Official documents

Where CANRO provides on-site service

On-site service is currently offered across Metro Vancouver: Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Delta, Langley, Port Moody, Port Coquitlam, Maple Ridge, Pitt Meadows, White Rock, Tsawwassen; plus Anmore, Belcarra, Lions Bay, Bowen Island, Abbotsford with travel or ferry arrangements confirmed by phone. Everything else on this site is reference information you can use anywhere in Canada.

See all service areas

Services for Bradford White gas storage tank units

Frequently asked questions

Can a high-input atmospheric tank also heat the house?

These models are listed for potable water and space heating and carry 3/4 in side connections for a space-heating loop, so a licensed heating contractor can connect a hydronic zone. WaterHeating.ca covers the domestic-hot-water side; the space-heating design is assessed with the boiler work CANRO does.

Do these models need electricity?

No. Like the rest of the atmospheric line they are powered by the pilot's thermopile, so they keep working during a power outage. They still need a chimney or B-vent that accepts a 4 in connection and combustion air from the room.

Are these tanks flammable-vapour resistant?

Only the RG250H6N carries the Defender Safety System FVIR design per the Canadian sheet. The RG255H, RG275H and RG2100H models do not, which matters for storage rooms where solvents or fuel are kept.

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On-site service in Metro Vancouver, BC. Call to check availability.

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Related

Sources and verification

Facts checked September 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.

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