Thumbs 1
Thumbs 1

Turbo Heat Cabin Heat Muff

Select Model:
StandardCustom Configuration
Add to Wishlist


The Turbo Heat is an improved version of the standard Experimental Cabin Heat Muff. Each canister is made from industrial grade .063 aluminum tubes with .125 6061T-6 aluminum end caps laser cut, welded and then machined to exact tolerance for ease of installation and a vibration free fit. Internally, each canister is fitted with 10 aluminum rods surrounded by copper windings for superior heat transfer.

The standard model is 8 in. in length with 2 in. intake and exhaust tubes. The end caps are machined specifically for the diameter of your engine’s exhaust manifold. Please select your port exhaust diameter at checkout of 1.250 in, 1.375 in, 1.5 in, 1.75 in, or 2.0 in. Note: Custom configuration of ducting size, angle and orientation available, choose Custom Configuration model above.

Custom Length:
The length of the canister can be increased beyond the standard 8 inches. Please select the additional length option upon checkout and add the number of additional inches for your unit.

The Restrictor:
Most Heat Muffs on the market today come with restrictor holes pre-drilled in the canister body; a one size fits all concept. The Turbo Heat has a removable restrictor which fits into the warm air (exit side) of the canister. By progressively enlarging the holes you are able to modify the flow of air through the Heat Muff essentially fine tuning the heat vs. airflow requirements for the type of aircraft that you constructed.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


  • 30%-50% more efficient due to the internal copper coils
  • Removable restrictor that can be adjusted (drilled out) to balance heat/airflow
  • Quality of workmanship
  • Low profile-outside diameter of canister is only 1 in. greater than diameter of exhaust tube
  • End caps are machined specifically for the size of the exhaust tube-providing a more secure fit
  • Ease of assembly-tools needed (one screwdriver); time to install (5 min.)
  • Wt. 18oz.



I worked with Dave on the measurements for my custom cabin heat muff. A well crafted design with outstanding workmanship. This will provide the warmth necessary for cold weather flying.

October 16, 2022

Great service from Dave, checking to make sure the dimensions of the special order heater muff were correct and for fabricating and shipping in a timely manner. A well built product that provides more heat , is more secure, and easier to remove for exhaust pipe inspection than my previous standard Vans muff. Using it on an RV-6 with a Lycoming O-360.

Ernest N
August 20, 2022

Very well designed and constructed product, Dave followed up my order via email to ensure I got what I was looking for with a carb heat setup for my new build RV 3B. I now have a Carb Heat Muff that I can have confidence in along with his Turbo Cabin Heat Muff which will last the life of the aircraft. Thanks Dave, outstanding help and service.

Russell T
July 8, 2021

Outstanding product and customer support! More compact, easier to install, and more heat than my old muff. I also required custom placement of the inflow and outflow ports (one angled!)--Dave was super-easy to work with and got mine delivered in days...not weeks! You cant beat this heat muff worth every penny.

Billy B
March 1, 2020

Incredible device that produces considerably more heat than the stock Vans component. Installed on my RV-7 and could not be more satisfied!!

Seth M
February 25, 2020

I installed this heater in my Lancair ES Super recently and Im extremely happy. I like the reduction of usable space and I finally have usable heat in the cabin. LOVE IT!

May 28, 2019

Super easy install, very well made, and good install instructions. Gave me cabin heat and plenty of it.

Darin F
March 24, 2019

This device does as advertised. Living in Northern Vermont and flying and RV-7A means you need the best possible cockpit heating system. Ive tested this muff several times now (at about 15 degrees Fahrenheit) and this new muff out performs my original. On an RV7 the standard issue muff is 8 in length. My exhaust pipe has room for 9 so I ordered the extra length. I also lightly packed a bit of stainless steel scrub pad between the inside tubes (instead of restricting the flow as recommended in the install instructions). Finally I connected the air flow to run counter to the exhaust flow direction. Im finally comfortable in my cockpit in January in Vermont using this new muff.

Elmer B
February 18, 2019

Im using this product on an RV8A, and the cabin heat improvement was quite impressive. Installation was simple and clean.

October 10, 2017

I am using this product on my home built Zenith Zodiac 601XLB, it has improved my cabin heat 100 %. It is an easy installation and I am totally pleased with my increased cabin heat.

September 22, 2017


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Am I correct in my understanding that the turbo cabin heat muff can also be made with the two protruding tubes mounted in an off-set pattern (one on top, the other underneath)?

Yes, our supplier does offer the opposed orientation (off-set) of the intake/heat exhaust tubes at no additional charge. Please let us know to add this to special notes on the order and it can be ordered for you.

Q: What is the standard lead time for a standard unit after order?

These will normally ship within 3-5 business days.

Q: Can the Turbo Heat cabin heat muff be made 6 inches long? Can it fit on a 1-3/8 inch exhaust tube?

Yes. These can be ordered in custom sizes. Please contact the sales department for pricing and lead time on your custom specifications.

Q: Is there a heater muff for a Glasair III?

This muff can work in a Glasair III.

Q: Does this TURBO HEAT CABIN MUFF work for the rotax 912 uls?

These are custom made, so you could spec it so that it would work with a 912.

Q: What is the outside diameter of the Turbo Heat Cabin Heat Muff?

Outside diameter depends upon the manifold diameter.
2 in manifold / 3 in dia of canister
1.75 in manifold /2.75 of canister
1.5 in manifold / 1.375 of canister
1.25 in manifold dia / 2.5 in dia of canister

View in Catalog

View Image View in Catalog