Complete RV furnaces from Suburban and Dometic, from 16,000 up to 30,000+ BTU. Size to your rig: roughly 30–40 BTU per square foot is the rule of thumb, so a 25-foot trailer lands around a 20,000–25,000 BTU unit. Too small and it runs constantly; too big and it short-cycles.
Replacing an existing furnace? Match the cutout dimensions and ducting configuration — a same-brand swap is usually the cleanest install.
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Suburban RV
Suburban RV 2605A 2-RP20 Furnace Replacement Core for SF20 and SF20 Q Models
Sale price$1,216.00
In stock, 25 unitsOnline Only
Suburban RV
Suburban RV RP20 Furnace Replacement Core (Part Number 2606A) for SF20 F/SF20 FQ/SFFQ Models
Sale price$1,276.00
In stock, 17 unitsOnline Only
Online OnlySave $108.00
Suburban RV
Suburban RV Furnace Core Replacement for SF25FQ and SF30FQ – 2608A
Sale price$1,303.00
Regular price$1,411.00
In stock, 25 unitsOnline Only
Suburban RV
Suburban RV SF35/42Q Furnace Replacement Core - Model 2609A
Sale price$1,598.00
In stock, 25 unitsOnline Only
Suburban RV
Suburban RV Furnace Replacement Core SF35FQ/SF42FQ - 2610A
Sale price$1,621.00
In stock, 25 unitsOnline Only
Suburban RV
Suburban RV NT16SQ/NT20SQ Propane Furnace Replacement Core - SBN2611A
Sale price$1,183.00
In stock, 25 unitsOnline Only
Suburban RV
Suburban RV Propane Furnace Replacement Core (NT16SEQ/NT20SEQ) - 2612A
Sale price$1,206.00
In stock, 25 unitsOnline Only
Suburban RV
Suburban RV Furnace NT30SP/NT34SP Core Replacement - 2613A
Sale price$2,038.00
In stock, 25 unitsOnline Only
Suburban RV
Suburban RV Nt40 Core Replacement 2051A by Suburban RV
Sale price$2,288.00
In stock, 25 unitsOnline OnlySave $229.00
Suburban RV
Suburban RV RP-40P Furnace Core Replacement - 40,000 BTU Electronic Ignition - 2615A
Sale price$2,775.00
Regular price$3,004.00
In stock, 25 unitsOnline OnlySave $189.00
Suburban RV
Suburban RV Furnace 19,000 BTU NT-20SQ - 2450A
Sale price$2,296.00
Regular price$2,485.00
In stock, 25 unitsOnline Only
Suburban RV
Suburban RV Furnace 19,000 BTU NT-20SEQ - 2504ABK
Sale price$2,168.00
In stock, 25 units
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Suburban RV
Suburban RV SF25FQ 25,000 BTU 12V RV Furnace - Model 2555A
Sale price$2,376.00
In stock, 25 unitsOnline OnlySave $157.00
Suburban RV
Suburban RV SF25Q RV Furnace - 2556A
Sale price$1,901.00
Regular price$2,058.00
In stock, 21 unitsOnline Only
Suburban RV
Suburban RV SF30FQ 12V RV Furnace (Part #2558A) - 30,000 BTU/H
Sale price$2,426.00
In stock, 25 unitsOnline Only
Suburban RV
Suburban RV Ducted Furnace SF30Q 12V - 30,000 BTU 2559A
Sale price$2,426.00
In stock, 25 unitsOnline Only
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Suburban RV
Suburban RV SF30VHFQ 30,000 BTU Horizontal & Vertical Mount Furnace - 2576A
Sale price$2,485.00
In stock, 25 unitsOnline Only
Online OnlySave $212.00
Suburban RV
Suburban RV SF35VHQ Furnace 35,000 BTU - 2588A
Sale price$2,575.00
Regular price$2,787.00
In stock, 25 units