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) rates 3.4 among under 25,000 BTU RV furnaces; the KingRVer HF25-E 25,000 BTU rates 3.2 among 25,000 to 30,000 BTU ones. The KingRVer HF25-E 25,000 BTU costs $239.92 less ($599.99 vs $839.91).
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.
KingRVer HF25-E 25,000 BTU
A budget 25,000 BTU complete furnace for a 20 to 28 ft trailer.
Amazon $599.99$599.99
Scores side by side
These two sit in different size classes (under 25,000 BTU and 25,000 to 30,000 BTU), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | Suburban NT-20SEQ (2504ABK) | KingRVer HF25-E 25,000 BTU |
|---|---|---|
| Overall rating | 3.4/5 | 3.2/5 |
| Value 40% | 30 $44.21 per 1,000 BTU ($839.91, 19,000 BTU) | 78 $24 per 1,000 BTU ($599.99, 25,000 BTU) |
| Power draw 35% | 88 2.8 A running, 0.1 A per 1,000 BTU | 50 12 V amp draw not published (neutral score used) |
| Warranty 25% | 50 2-year warranty | 0 warranty not published, scored as none |
Specifications
| Suburban NT-20SEQ (2504ABK) | KingRVer HF25-E 25,000 BTU | |
|---|---|---|
| Heat and power | ||
| Input capacity | 19,000 BTU | 25,000 BTU |
| 12 V amp draw | 2.8 A | - |
| Airflow | 150 CFM | 240 CFM |
| Discharge | Direct discharge | - |
| Fit | ||
| Height | 9.4 in | 8 in |
| Warranty | ||
| Warranty | 2 years | - |