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INSTAHEAT 25K

25K BTU RV Propane Furnace

$699.99 ~~$1,099.99~~ Save $400.00

Labor Day Price Protected

Right-sized ducted heat for compact RVs.

InstaHeat 25K delivers 25,000 BTU with 240 CFM airflow. It is the lower-output choice for smaller trailers where the cabinet, return air and ducts do not need a 30K or 35K furnace.

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25,000 BTUPropane heating output

240 CFMAirflow for central ducting

12V DCRV electrical supply

Horizontal / verticalFlexible furnace mounting

INSTALLATION FIT

Match the 25K cabinet and central duct system.

17.75 × 20.1 × 8 in cabinet · 12V DC · LP gas · Central ducting

PDF GUIDE Installation manual Cabinet, ducts, return air, exhaust, propane, wiring and mounting requirements. Open manual

Select Door: No Door

Secure checkout More options available at checkout

30-day returns

Free contiguous U.S. shipping

2-year warranty

Choose your InstaHeat furnaceCompare all models

Current model

25K25K BTU · 240 CFMRight-sized ducted heat for smaller RV interiors

Fogatti InstaHeat 30K BTU RV Furnace, Ducted Propane Heater with Smart Remote Control,12V DC

30K30K BTU · 260 CFMMore recovery for moderate RV heat loads

35K35K BTU · 320 CFMMore recovery power for larger and colder RVs

Fit and installation

Cabinet size: 17.75 W × 20.1 D × 8 H in
Mounting: Horizontal or vertical
Heating output: 25,000 BTU/h
Airflow: 240 CFM
Power supply: 12V DC
Duct static pressure: 0.10 in WC

The listed cabinet, return-air area, ducts, exhaust, 12V power and LP supply support proper operation. Vertical installation uses the specified support hardware.

What’s included

✓Furnace coreInstaHeat 25K ducted propane furnace
✓Door optionNo door, black door or white door variant
✓ThermostatWired digital thermostat
✓Installation partsModel-specific mounting and connection hardware
✓DocumentationUser manual and installation guidance

Package contents follow the selected configuration and variant.

Specifications

Heating input: 25,000 BTU/h
Airflow: 240 CFM
Power supply: 12V DC
Rated current: 3.5A
Motor power: 42W
Duct static pressure: 0.10 in WC
Return air: 80 in²
Minimum return air: 55 in²

Quick answers

Can it be installed vertically?
Yes, when the specified mounting bracket and installation instructions are followed.

Does it work with in-floor ducting?
It is designed for central ducted RV heating; confirm duct sizing and static pressure with an installer.

How do I choose the furnace output?
Choose from the RV heat load, cabinet size, duct capacity and the output of the furnace being replaced.

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RIGHT-SIZED DUCTED HEAT

25K heat for smaller RV systems

The lower-output furnace matches compact interiors and lighter duct systems without forcing 35K airflow through them.

25K PROPANE HEAT

Warm smaller RV interiors efficiently

Right-sized output helps avoid buying furnace capacity the cabin and ducts cannot use.

240 CFM AIRFLOW

Match compact central duct systems

Rated performance still depends on adequate return air and unrestricted supply outlets.

12V RV CONTROL

Keep dependable cold-weather propane heat

LP heat remains useful when outside temperatures reduce rooftop heat-pump performance.

CHOOSE BY HEAT LOAD

Choose 25K for genuinely smaller RVs

Start with the old furnace output, the cabin heat load and the duct capacity.

Compact trailers and smaller motorhomes

The 25K platform is intended for lighter heat loads.

Central duct systems around 240 CFM

Confirm return air and outlet area before ordering.

Move up only when the RV needs it

Choose 30K or 35K for larger cabins, colder routes or greater duct capacity.

INSTALLATION FIT

Complete 25K furnace-system compatibility

Cabinet dimensions, airflow, exhaust and utilities work together for proper operation.

FIT AT A GLANCE

Match cabinet, air, exhaust and utilities

Compare the manual with the old furnace before disconnecting LP gas or 12V wiring.

Heat input: 25,000 BTU/h
Airflow: 240 CFM
Cabinet: 17.75 × 20.1 × 8 in
Power: 12V DC / 3.5A
Return air: 80 in²
Static pressure: 0.10 in WC

Vertical installation uses the specified bracket with the listed return air, ducts, exhaust clearance and gas supply.

CHOOSE THE RIGHT MODEL

Choose the output the ducts can move

Higher BTU is not an upgrade when the existing air system is too restrictive.

COMPACT RV PICK

InstaHeat 25K

For smaller RVs and lighter heat loads.

Heat: 25K BTU
Airflow: 240 CFM
Motor: 42W

InstaHeat 30K

For moderate heat loads and mid-size ducts.

Heat: 30K BTU
Airflow: 260 CFM
Best for: Mid-size RVs

InstaHeat 35K

For larger rigs, colder routes and greater duct capacity.

Heat: Up to 35K
Airflow: 320 CFM
Modes: 4 levels

QUICK ANSWERS

Why the 25K furnace fits smaller RV heat loads

Quick guidance on output, cabinet fit, ducts and utilities.

Can it be installed vertically?

Yes, when the specified mounting bracket, clearances and installation instructions are followed.

Does it work with central RV ducting?

Yes. Confirm return air, outlet area and static pressure with the manual.

When should I choose 30K instead?

Move up when the RV heat load, old furnace output and duct capacity call for more than 25K and 240 CFM.

What utilities does it require?

It needs LP propane, 12V DC power, correct exhaust routing, return air and compatible supply ducts.

We've got you covered, 24/7.

Our customer support is available around the clock, every day of the week.Tel: +1 877 216 1818

Fast & Free Shipping

We get it out within 1 business day. Should be at your door within a week.

Real People. Real Help.

Got questions? We provide tech support over the phone, from setup to everyday use. We're here when you need us.

30-Day Return/Refund

Fogatti offers customers 30-Day returns for exchange or refunds

2 Year Warranty.

We build it tough. But if something fails in the first two years, we'll fix it or swap it out. Simple as that.