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Electric Heat Strip for Advent Air RV Air Conditioners - 5,500 BTU

Electric Heat Strip for Advent Air RV Air Conditioners - 5,500 BTU

Item # ACMHD
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Our Price: $87.08
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Electric Heat Strip for Advent Air RV Air Conditioners - 5,500 BTU Heat Strip ACMHD
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This electric heat strip works with your AC unit (sold separately) to remove the chill from your RV or camper on cold or frosty mornings. Power cord and mounting hardware are included for easy, plug-and-play installation. 1-833-496-1390 to order Advent Air accessories and parts part number ACMHD or order online at Free expert support on all Advent Air products. Guaranteed Lowest Price and Fastest Shipping for Electric Heat Strip for Advent Air RV Air Conditioners - 5,500 BTU. Accessories and Parts reviews from real customers.
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  • Reviews (45)
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Advent Air Accessories and Parts - ACMHD

  • RV Air Conditioners
  • Heat Strip
  • Advent Air

This electric heat strip works with your AC unit (sold separately) to remove the chill from your RV or camper on cold or frosty mornings. Power cord and mounting hardware are included for easy, plug-and-play installation.


  • Electric heat strip removes the chill on cold or frosty mornings in your RV or camper
    • Works with Advent Air AC units ACM135, ACM135B, ACM150, and ACM150B (sold separately)
    • Works with Advent Air air distribution box ACDB (sold separately)
  • Easy plug-and-play installation with included 30" power cord
  • Mounting hardware is included


  • Capacity: 5,500 Btu per hour
  • Overall dimensions: 15-3/4" long x 2-3/4" wide x 4-3/4" tall
  • 1-Year warranty

How It Works

Paired with your AC unit (sold separately), this electric heat strip keeps your RV warm on a cold or frosty morning. It is operated with the control dial on the air distribution box (sold separately). After you turn the dial to the heat setting, the compressor will shut off, and the fan will blow air over the heater and into your RV. When the optimal temperature has been reached, turn the dial to a fan or cooling setting. Please also note that the heat strip only has one temperature setting and cannot be controlled by the thermostat.

Simple Installation

Advent Air Electric Heat Strip

To install, mount the heat strip to the evaporator inside the AC unit with the included mounting screws. The heat strip has easy, plug-and-play installation with the supplied 30" power cord.

ACMHD Advent Air Electric Heat Strip for RV Air Conditioners - 5,500 Btu

California residents: click here

Customer Reviews

Electric Heat Strip for Advent Air RV Air Conditioners - 5,500 BTU - ACMHD

Average Customer Rating:  4.6 out of 5 stars   (45 Customer Reviews)

This electric heat strip works with your AC unit (sold separately) to remove the chill from your RV or camper on cold or frosty mornings. Power cord and mounting hardware are included for easy, plug-and-play installation.


I received the heater unit & promptly installed it. Being a competent mechanical type, I found the installation to be straightforward but a bit painful. On the left side (w/elect terminals) was a slot in the protective metal screening for the purpose of using a screwdriver to install the 2 short screws. Difficulty came when trying to weave the screwdriver through terminal ends and wires while trying to guide the screw into the bracket slots.
On the opposite end, there were no electrical terminals, but neither was there a slot in the screening. This required a small diameter Phillips screwdriver to get through the metal screening. In my case it took way longer than one would anticipate to install 4 small screws. It was all good in the end & I am pleased with the product, how it is integrated into the a/c unit and how it functions.
It may be worth mentioning in the video & written instruction, that the HEAT position on the air distribution box also provides power to the fan for heat circulation. I did not see or hear that mentioned anywhere and caused me to question it. By trial, I discovered it's functionality.

Can this be installed as a standalone unit?
-- comment by: Doug C - 07/15/2022


I received the order a week early. Only issue is that the frame was damaged in shipment but was isolated to the frame and no other damage. Installation was straight forward. Installed on 7x14 trailer. Hardest part was removing vent opening sealant from the roof. Ran fine on initial start-up. Will test with heat load today.


Got my a/c unit last week and it looked and operated so good I turned around and ordered the heat element and it was so easy to install and works flawlessly. I'm very pleased with doing business with you.


Well built and works great. It does everything they said it would do!


I've been dealing with etrailer for quite a bit of supplies lately as I'm building a cargo trailer/camper conversion. This item, along with everything else I've purchased has been great quality. No complaints here!

by: 05/10/2022

winter will tell the tale but great service and quick delivery


NO SCREWS/BOLTS WERE GIVEN OR DIRECTIONS. Directions I can do without but the screws should be included. The part has big holes for the screws/bolts but the frame has little tiny holes. Big hassle.

Customer Service will contact you regarding the missing hardware. Here is an installation video to use as a guide for installing your heat strip once you receive your hardware:
-- Etrailer Expert Sierra K - 10/27/2021


All went well.


Excellent company and product! Thanks!

It has been great. I can heat my trailer with it when hooked to power and save my propane. It is enough to keep it about 70 inside by its self.
Cliff J - 01/01/2022


Works as good as expected I’m satisfied with it


I installed the heat strip in my Advent air conditioner and it worked great, instructions were very good and it worked well, nice and warm. We had just installed the ac unit in a pop up camper and it was great, does not drip water on roof. Very happy. Steve


Shipping time awesome. Have not installed yet but will update then.


Order arrived sooner than expected


Arrived soon then the expected date. heater worked perfectly

The heat strip worked perfectly during the winter. Kept the rv warm.
Seth - 11/15/2021


Easy install. Will not be able to test until temp drops as it uses ambient air temp to activate per asa electronics. Currently too hot!! Timely delivery.


Very happy with this company they have everything I need and delivery is fast very happy and will continue doing business with them


Unit is good design. I'll install it in this coming Sping.


I purchased this heat strip for the Advent AC135 rv rooftop air conditioner. The ACHD is the heat strip that is recommended for my unit but has been discontinued. The electrical specs for the ACHD and the ACMHD are the same, as is the width and height. I was able to match the curbside holes on the evaporator with the heat strip flange precisely. I mounted the heat strip and used the roadside heat-strip flange as a guide to drill two holes for a solid mount. Pretty simple after I clipped away a small portion of the cage that surrounds the heat strip. Plugged it in and, voila, heat. Works great. Sorry, no pics. And I don’t want to remove the shroud again if I don’t have to, as putting that back on was the hardest part of the job.


Does not work. Produces no heat

Thank you for letting us know! Our customer service team should be reaching out to you in the near future.
-- Etrailer Expert Brooke M - 10/13/2021


Added as a second unit to a 33' Crossroads. Works great. Easy straight forward install. Using the ACRG 15 air distribution box with thermostat. All the wires are labeled from the factory so installation was a snap. Added the ACMHD heat strip also but it's 85 degrees and a little hard to test that out just yet. The crew at etrailer were great at helping me get everything picked out that I needed. Shipping was fast. If there was such a thing as a 10 star rating, they deserve it


Not as much as I expected, but, it does put out a reasonable amount of heat!


Just got it and can't wait to install it later today to see how it works.


The heat strip works well. I would like more temperature control. But it certainly warms the living quarters of my trailer.


I just installed the heat strip and it was simple. My original thought was to purchase this from a well known department store who cancelled the order. I then tried Amaz.... but their price was crazy. A call to the manufacturer directed me to etrailer! Pricing was very competitive in fact budget shipping beat everyone so I placed the order! I couldn’t believe how quick I received it. etrailer is on my speed dial now!


Seems like a great product so far. Installation was simple and it cools a 8.5x28’ trailer easy.

One note: you must have 120v and 12v supply for this AC to work. I did not know that and had to go through some extra trouble of running 12 V power source.

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Chris R
Video Edited:
Chris R
Employee Mary E
Updated by:
Mary E
Employee Wilson B
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