My original Marineairr 16000BTU unit bit the dust after 26 years. I installed a new Dometic 16000 ECU retrofit kit. Great price at imarineusa and easy installation. This unit is much more efficient and a lot quieter than the original unit. My marine HVAC guy said it would take about 6 weeks to get a unit. I found it on the internet and saved about $900 and had it in 3 days! Very pleased with the final result.