Suburban NT-20SEQ (2504ABK)

Last updated: November 3, 2026

Suburban NT-20SEQ (2504ABK)

3.4/5#1 of 3 in under 25,000 BTU RV furnaces
3.4

For a camper van or small trailer with one open room, where battery drain matters more than total heat.

19,000 BTUInput
2.8 A12 V draw
150 CFMAirflow
Direct dischargeDischarge

Check price at Amazon$839.91

Price checked November 3, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros

Draws only 2.8 A on 12 V, the lowest of any furnace here
Direct discharge needs no duct runs for a van or small camper

Cons

Only 19,000 BTU, with 150 CFM into one room
Needs a wall thermostat bought separately

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.

Value $44.21 per 1,000 BTU ($839.91, 19,000 BTU)30
Power draw 2.8 A running, 0.1 A per 1,000 BTU88
Warranty 2-year warranty50

Specifications

Heat and power
Model number	2504ABK
Input capacity	19,000 BTU
12 V amp draw	2.8 A
Airflow	150 CFM
Discharge	Direct discharge
Fit
Height	9.4 in
Warranty
Warranty	2 years

Alternatives in this size

Fogatti RFS20A0B 20,000 BTU

#2 in Under 25,000 BTU3.0Full review

For a van, truck camper or small trailer where low battery draw outweighs raw heat.

$899.99

Suburban SF-20FQ (2551A)

#3 in Under 25,000 BTU1.8Full review

A like-for-like replacement for an older 20,000 BTU Suburban SF furnace in a small trailer.

$951.18

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