Public Discussion Forum

Thanks so much. I should have posted sooner. Ordered it from Citimarine

Thanks again,

Pat

I've been replacing the ducting on Roadrunner as needed. In particular I wanted to avoid a metallic exterior surface so went with a non-conductive polyester outer-cover type.

The 3" was obtained from CitiMarine (ignore the 4" diameter in the listing, select 3" and you'll receive 3"), ordered MPI - Marine Products International 3" series 480.

https://marinehose.com/product/series-480/

https://citimarinestore.com/en/dometic-marine-air-conditioner-parts/6251-mpi-air-conditioning-flexible-air-duct-25-ft-box.html?srsltid=AfmBOooe55_hbwOsPUrb_9jjCMRDVpUmwHt3e7aUD9hYSAwhygEGxQdN

The 5" and 6" were from Supply House, ordered H&C Flex F114

https://hcflexduct.com/products/residential/

https://www.supplyhouse.com/HC-Flex-17002506H-6-x-25-F114-Insulated-Flex-Duct-Gray-Jacket

If you find aluminum welded T's in the ducting, MSI (Marine Systems Inc) makes far better plastic T's with an internal "diverter" flap for directing air flow more one way than the other.

https://airmsi.com/

What I found in our boat is that the ducting was unnecessarily over-sized for the air handlers when a T was used to split the duct. Matching the duct size to the air handler fan CFM and adjusting the diverter flap helps to equalize the air flow at the output grills.

rob

Roadrunner

2007 Selene 49 deep hull 48-029

Thank you for the suggestions.

Having trouble sending my reply.

Thanks,

Pat

I had to replace my air conditioner ducting and am having trouble locating the 3-in Thermaflex ducting that was installed. It is Thermaflex G-KM insulated flexible ducting.

Does anyone know of a source for it.

Thanks,

Pat Moore

48-19

Salacia