Suburban SF-35VHQ (2588A)
The standard replacement for a 35,000 BTU Suburban SF furnace where the exterior service door stays.
Amazon $929.99$929.99
3.5/5
For big fifth wheels and motorhomes that need a single large furnace.
- 40,000 BTUInput
- 9 A12 V draw
- DuctedDischarge
Check price at Amazon$1,138.76
Price checked November 3, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Largest Suburban size at 40,000 BTU
- Amp draw about 9 A, lower than the older SF-42
Cons
- About $28 per 1,000 BTU
- Needs the exterior access door
The Suburban SF-VHQ family
Every Suburban SF-VHQ model we rank, smallest first. Ratings compare each against its own size.
| Model | Input | Rating | Price |
|---|---|---|---|
| Suburban SF-35VHQ (2588A) | 35,000 BTU | 3.6/5 | $929.99 |
| Suburban SF-42VHQ (2592A) (this one) | 40,000 BTU | 3.5/5 | $1,138.76 |
How it scores
The rating comes from 3 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | 2592A |
|---|---|
| Heat and power | |
| Input capacity | 40,000 BTU |
| 12 V amp draw | 9 A |
| Discharge | Ducted |
| Fit | |
| Height | 7.5 in |
| Weight | 35.6 lb |
| Warranty | |
| Warranty | 2 years |
Alternatives in this size
KingRVer HF35-E 35,000 BTU
The cheapest 35,000 BTU furnace per BTU for a 28 to 38 ft trailer, on trust in a new brand.
Amazon $599.97$599.97
Suburban SF-42VHFQ
For a 40,000 BTU furnace in an RV with no exterior door and a long duct run.
Amazon $1,185.98$1,185.98
Compare
Compare the Suburban SF-42VHQ (2592A) with any other RV furnace →
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