Join Date: Oct 2004
Location: Narragansett Bay
Thanked 1 Time in 1 Post
Rep Power: 15
Early last season, I upgraded the 3DL Espar, originally commissioned with my boat, to the new 4D Airtronic. This decision was due in part, to that archaic 3DL control box requiring replacement. The cost for just the module alone was $850.00. It did not make sense to throw good money into an old, discontinued system.
We love the new Airtronic Espars and have not found the noise levels to be an annoyance at all. We don't live board off season, so can't provide testimony to winter efficiency. But, the comfort level of a total balanced air system on a boat is such a luxury for those cold early and late season nights and chilly damp days.
I bought all the components directly from Ocean Options in RI - luckily for us, just a couple miles from the boat and the East Coast dealer for Espar. Ed Hamilton was a great guy to work with - gave me 50% off a package deal on a new 4D unit, which was recently installed in another boat - but removed after the owner decided to go hydronic . . . less than 8 hours use.
I installed a new Digital thermostat, a few feet of new duct to replace smaller diameter trunk lines, reducers, muffler, new exhaust pipe insulation sock, all new wiring harness, metering pump, mounting brackets, etc. I reused all 6 supply ducts and registers and the stainless steel exhaust port - so the work wasn't that hard.
The system does cycle through gradually after turning on and off but does reach the required velocity in short time. The fan is very quiet - uses 1.5 to 3 amps maximum while away from shore power. It's quiet enough that the tic-tic-tic . . . sound of the metering pump is more audible - but not annoying at all.
In fact, our dockmates commented last weekend on how quiet our system is, especially compared to the boat across the channel from us - a large Freedom with another diesel system. That sounds like a jet taking off.
True Blue . . .
sold the Nauticat