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
The cheapest 35,000 BTU furnace per BTU for a 28 to 38 ft trailer, on trust in a new brand.
- 35,000 BTUInput
- 320 CFMAirflow
Check price at Amazon$599.97
Price checked November 3, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- $17 per 1,000 BTU, the lowest of any furnace here
- Complete unit with built-in thermostat
Cons
- No published amp draw or warranty
- Price is a Woot sale offer; the KingRVer store lists it at $699.99
The KingRVer HF-E family
Every KingRVer HF-E model we rank, smallest first. Ratings compare each against its own size.
| Model | Input | Rating | Price |
|---|---|---|---|
| KingRVer HF25-E 25,000 BTU | 25,000 BTU | 3.2/5 | $599.99 |
| KingRVer HF30-E 30,000 BTU | 30,000 BTU | 3.3/5 | $649.99 |
| KingRVer HF35-E 35,000 BTU (this one) | 35,000 BTU | 3.5/5 | $599.97 |
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 | HF35-E |
|---|---|
| Heat and power | |
| Input capacity | 35,000 BTU |
| Airflow | 320 CFM |
| Fit | |
| Height | 8 in |
Alternatives in this size
Suburban SF-42VHQ (2592A)
For big fifth wheels and motorhomes that need a single large furnace.
Amazon $1,138.76$1,138.76
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 KingRVer HF35-E 35,000 BTU with any other RV furnace →
More from KingRVer: every KingRVer product ranked.