Buying guide · 10 min read · Updated October 2, 2026

5 Best Space Heater For 30 Amp RV in 2026: A Practical RV Guide

Compare five plug-in and wall-mounted heaters for 30-amp RV hookups by amp draw, wattage steps, thermostat and anti-freeze features.

By Bowen HigginsRV Editor at RV Gear Lab5 products comparedSpec-sheet researched

A 30-amp RV service gives you about 3,600 watts at 120V to share between the air conditioner, microwave, water heater and everything else, so a heater has to be judged by what it leaves you. An 11-amp heater takes over a third of the service by itself.

This guide ranks five heaters on that budget, all of which plug into a normal 120V outlet. A thermostat and low settings are what actually let a heater coexist with other loads.

RV Gear Lab field notes

The Rig Fit Check

Start with the job: Caframo True North Heater. Low Profile leads this shortlist for Parked winter rigs. Use that fit as a reference point, then compare the alternatives against your own space and workload.
Specs that separate the picks: The first details to compare are Thermostat, 3 heat and 2 fan settings, 11 amps, 1325 watts, 750 and 1500W settings. Confirm the exact model and included components before ordering.
Trade-off to plan for: Wattage is not stated on the listing

Before you buy

What Matters Before You Choose a Space Heater For 30 Amp RV

Key buying criteria so you get the right fit the first time.

01
Amp budget
A 30-amp service at 120V is about 3,600 watts shared by every appliance. An 11-amp heater leaves 19 amps for the rest. Do the subtraction before you plug in.
02
Low wattage steps
A 750W step lets a heater run alongside a microwave or water heater element. Only 1500W forces you to turn something off. Look for the steps listed.
03
Plug and outlet
An RV outlet takes a normal 120V plug, so a heater should plug straight in without special wiring. A heater that needs a fixed circuit is not an RV appliance. Check the plug type on the listing.
04
Thermostat control
A thermostat cycles the heater and keeps the load intermittent, which helps a limited service. A plain dial can run continuously. Look for a thermostat range.
05
Freeze protection
A setting that keeps the cabin above 38°F can protect plumbing in a parked rig. It is only useful with shore power. Look for an anti-freeze mode.
06
Floor space and mounting
Wall-mounted units free the floor in a tight rig, while portables can be moved. Mounting needs a stud or a solid wall. Check dimensions and mounting needs.

Our standards

Why You Can Trust RV Gear Lab

At RV Gear Lab, we compare products based on rig fit and power or hookup compatibility, verified specifications, usability, setup requirements, weight, durability, and real-world trade-offs. We do not rank products purely on marketing claims or commission rates.

We have not personally tested every product listed. Where hands-on testing is not available, recommendations are based on verified manufacturer specifications, product documentation, use-case fit, and comparative research.

How we review RV gear →

Detailed reviews

The 5 best space heater for 30 amp rv, explained

Best Overall for 30-Amp RVs · 1 of 5

Caframo True North Heater. Low Profile

Thermostat, 3 heat and 2 fan settings
Anti-freeze at 38°F
Low profile, ultra quiet

Check price on Amazon

Best for: Parked winter rigs

Our take

Best for a parked or stored RV that needs freeze-avoidance and a thermostat.

Why it made the shortlist

The Caframo True North is a low-profile electric heater with an adjustable thermostat, three heat and two fan settings and ultra-quiet operation. Its anti-freeze setting turns on automatically when the air drops to 38°F, which suits a parked rig, and its low profile is described as preventing tip-overs.

Against Suburban Wall Mount, it is a portable heater rather than a fixed install.

What works

Anti-freeze setting turns on at 38°F
Adjustable thermostat
Three heat settings help load planning
Low-profile body resists tipping

Watch out for

Wattage is not stated on the listing

The catch: Against DREO 30 Inch, it is smaller with three heat steps.

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Best Fixed RV Install · 2 of 5

Suburban Wall Mount RV Electric Heater

11 amps, 1325 watts
13 x 5 x 17 inch wall mount
Adjustable thermostat

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Best for: Permanent installs

Our take

Best for owners who want a permanent, slim heater and have the amp budget.

Why it made the shortlist

The Suburban Wall Mount RV Electric Heater is 13 by 5 by 17 inches and under 5 inches thick, with an adjustable thermostat, variable heat and a 6-foot grounded cord for a 120V outlet. The listing gives its draw as 11 amps and 1325 watts.

Against Xtreme 750/1500W, it is a fixed install made for RVs.

Plan around 11 amps on a 30-amp service.

What works

States 11 amps and 1325 watts plainly
Slim under 5 inches thick
Adjustable thermostat and variable heat
6-foot grounded cord to a 120V outlet

Watch out for

11 amps is over a third of 30 amps
Wall mounting takes more work

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Best Dual-Wattage Portable · 3 of 5

Xtreme Heaters Portable Boat Cabin RV Space Heater with Tip-Over Shutoff

750 and 1500W settings
Top intake allows wall placement
Tip-over shutoff

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Best for: Movable heater

Our take

Best for a movable heater with a 750W low step.

Why it made the shortlist

The Xtreme Heaters portable heater is described for boats, cabins and RVs with 750 and 1500W settings and a top air intake that lets it sit against walls. It has a low profile, stable base and tip-over shutoff.

What works

750W step eases a 30-amp load
Can sit against walls
Low stable base
Tip-over shutoff

Watch out for

No thermostat detail on the listing

The catch: Against DREO 30 Inch, it is smaller and simpler.

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Best Quiet Tower · 4 of 5

DREO Space Heater Large Room

30 inch tower, 120 degree oscillation
5 heat levels plus ECO
25 dB, eight protections

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Best for: Quiet living areas

Our take

Best for a living area where noise matters.

Why it made the shortlist

The DREO 30 inch tower uses a 308mm PTC element with 120 degree oscillation, five heat levels plus ECO and 3 fan levels, and a stated 25 dB noise level. The listing gives eight protections including V0 flame-retardant material and cool-touch housing.

Against Suburban Wall Mount, it is portable and quieter.

What works

Five heat levels plus ECO for load control
120 degree oscillation spreads heat
Eight protections including V0 materials
Stated 25 dB noise level

Watch out for

Wattage not stated on the listing

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Best Low-Load Supplement · 5 of 5

450W Space Heater

350W, 2.9 amps per spec
Digital thermostat, timer
Wall-outlet plug-in

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Best for: Supplemental bedroom heat

Our take

Best as a low-load add-on alongside the air conditioner or other heaters.

Why it made the shortlist

The Minetom wall-outlet heater is listed at 350 watts and 2.9 amps at 120 volts, with a digital thermostat and a timer. The title says 450W, so the listing contradicts itself.

Against Xtreme 750/1500W, it draws about a fifth as much at 2.9 amps. It is a supplement for a bedroom, not a main heater.

What works

Only 2.9 amps per the spec
Digital thermostat and timer
Plugs straight into an outlet

Watch out for

Title and spec disagree on wattage
Heats only a small area

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Methodology

How We Built This Shortlist

Each pick was assessed across 5 criteria weighted for real-world use.

Amp and watt draw

We compared stated amps and watts against a 30-amp, 120V service of about 3,600 watts.

Wattage steps

We noted low settings that coexist with other loads.

Install type

We separated portable plug-in units from a wall-mounted heater.

Thermostat and anti-freeze

We compared thermostat and freeze-avoidance features.

Fit for RV service

We kept only heaters that run from a standard 120V RV outlet.

Decision guide

Match a Space Heater For 30 Amp RV to Your RV

By Amp Budget

Your situation	Recommended pick	Why
Under 3 amps spare	Minetom Wall Plug	2.9 amps per spec.
Mid load with a 750W step	Xtreme 750/1500W	750W and 1500W settings.
Known 11-amp load	Suburban Wall Mount	11 amps and 1325 watts stated.
Thermostat and anti-freeze	Caframo True North	Anti-freeze at 38°F.
Quiet, many levels	DREO 30 Inch	Five heat levels plus ECO.

By Budget

Budget	Recommended pick
$20 to $130	Minetom Wall Plug or Caframo True North
$120 to $130	Xtreme 750/1500W or DREO 30 Inch
$140 to $150	Suburban Wall Mount

Fixed Heater vs Portable

Fixed

Suburban Wall Mount is a slim wall unit with a stated 11 amps. It frees floor space and stays put.

Portable

Caframo True North, Xtreme 750/1500W and DREO 30 Inch move around and store away. They suit renters of space.

Most 30-amp owners should choose Caframo True North unless a permanent Suburban Wall Mount fits the wall.

By Use Pattern

Pattern	Recommended pick
Stored winter RV	Caframo True North
Daily living use	Suburban Wall Mount
Quiet bedroom	DREO 30 Inch
Add-on warmth	Minetom Wall Plug

For Full-Timers on a 30-Amp Pedestal Specifically

Look for

A known amp draw, a low step and a thermostat so the heater cycles, as the Caframo True North listing shows.

In this comparison

Suburban Wall Mount states 11 amps and Xtreme 750/1500W states a 750W step. Add each to your other loads.

When to Spend More

Spend more if

Spend more on Caframo True North or Suburban Wall Mount if you want freeze protection or a known-draw fixed install.

Save if

Save with Minetom Wall Plug or Xtreme 750/1500W if you only need supplemental warmth with a low load.

FAQ

Before You Bring One Home

How many watts is a 30-amp RV service?

About 3,600 watts at 120V, shared by all appliances. A 1500W heater uses about 12.5 amps of that.

Can I use a hardwired or 240V garage heater in my RV?

No. A 30-amp RV service is 120V and about 3,600 watts, and those heaters need a different supply. Stick to plug-in units such as Xtreme 750/1500W or Caframo True North.

Is Suburban Wall Mount worth more than Xtreme 750/1500W?

If you want a permanent slim install with a stated 11-amp draw, yes. For a movable heater, Xtreme 750/1500W costs less.

How do I avoid tripping the breaker?

Add up your running loads, use a low heater step and avoid running the air conditioner and heater together. Watch the pedestal breaker.

Can I use a heater to protect plumbing in a parked RV?

Caframo True North lists an anti-freeze setting at 38°F. It only works with power, so check the connection often.

Bottom line

The short version

Best Overall for 30-Amp RVs
Caframo True North Heater. Low Profile
Check price for Caframo True North Heater. Low Profile (opens in a new tab)
Best Fixed RV Install
Suburban Wall Mount RV Electric Heater
Check price for Suburban Wall Mount RV Electric Heater (opens in a new tab)
Best Dual-Wattage Portable
Xtreme Heaters Portable Boat Cabin RV Space Heater with Tip-Over Shutoff
Check price for Xtreme Heaters Portable Boat Cabin RV Space Heater with Tip-Over Shutoff (opens in a new tab)
Best Quiet Tower
DREO Space Heater Large Room
Check price for DREO Space Heater Large Room (opens in a new tab)
Best Low-Load Supplement
450W Space Heater
Check price for 450W Space Heater (opens in a new tab)

Browse more space heater for 30 amp rv on Amazon →

About the author

Bowen Higgins

RV Editor at RV Gear Lab

Bowen covers RV power, water systems, towing and leveling, upkeep and interior comfort, with a focus on matching gear to the rig, the hookups and the way you actually travel.

5 Best Space Heater For 30 Amp RV in 2026: A Practical RV Guide

Our top picks

The Rig Fit Check

What Matters Before You Choose a Space Heater For 30 Amp RV

Amp budget

Low wattage steps

Plug and outlet

Thermostat control

Freeze protection

Floor space and mounting

Why You Can Trust RV Gear Lab

The 5 best space heater for 30 amp rv, explained

Caframo True North Heater. Low Profile

Suburban Wall Mount RV Electric Heater

Xtreme Heaters Portable Boat Cabin RV Space Heater with Tip-Over Shutoff

DREO Space Heater Large Room

450W Space Heater

How We Built This Shortlist

Amp and watt draw

Wattage steps

Install type

Thermostat and anti-freeze

Fit for RV service

Match a Space Heater For 30 Amp RV to Your RV

By Amp Budget

By Budget

Fixed Heater vs Portable

By Use Pattern

For Full-Timers on a 30-Amp Pedestal Specifically

When to Spend More

Before You Bring One Home

How many watts is a 30-amp RV service?

Can I use a hardwired or 240V garage heater in my RV?

Is Suburban Wall Mount worth more than Xtreme 750/1500W?

How do I avoid tripping the breaker?

Can I use a heater to protect plumbing in a parked RV?

The short version

Bowen Higgins

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