Suburban NT-20SEQ (2504ABK)
For a camper van or small trailer with one open room, where battery drain matters more than total heat.
Amazon $839.91$839.91
The Suburban NT-20SEQ (2504ABK) is the better RV furnace overall, rated 3.4 to 3.0. The Suburban NT-20SEQ (2504ABK) leads on warranty. The Suburban NT-20SEQ (2504ABK) costs $60.08 less ($839.91 vs $899.99).
Prices were last checked November 4, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Fogatti RFS20A0B 20,000 BTU
For a van, truck camper or small trailer where low battery draw outweighs raw heat.
Amazon $899.99$899.99
Which should you buy?
- Choose the Suburban NT-20SEQ (2504ABK) for warranty (2-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every under 25,000 BTU RV furnace; a clear win is highlighted. How we rank explains each one.
| Factor weight | Suburban NT-20SEQ (2504ABK) | Fogatti RFS20A0B 20,000 BTU |
|---|---|---|
| Overall rating | 3.4/5 | 3.0/5 |
| Value 40% | 30 $44.21 per 1,000 BTU ($839.91, 19,000 BTU) | 29 $45 per 1,000 BTU ($899.99, 20,000 BTU) |
| Power draw 35% | 88 2.8 A running, 0.1 A per 1,000 BTU | 89 2.9 A running, 0.1 A per 1,000 BTU |
| Warranty 25% | 50 2-year warranty | 0 1-year warranty |
Specifications
| Suburban NT-20SEQ (2504ABK) | Fogatti RFS20A0B 20,000 BTU | |
|---|---|---|
| Heat and power | ||
| Input capacity | 19,000 BTU | 20,000 BTU |
| 12 V amp draw | 2.8 A | 2.9 A |
| Airflow | 150 CFM | - |
| Discharge | Direct discharge | Direct discharge |
| Fit | ||
| Height | 9.4 in | 11.3 in |
| Weight | - | 25.7 lb |
| Warranty | ||
| Warranty | 2 years | 1 year |