Hydronic install-gctid370202

[Sunnydude]

I finally made the decision to install a Hydronic Webasto heater in our 38. The kit has been sitting in my garage as I promised the wife that I would get another project completed before tackling this one.

I had the dealer come out and layout the system and then put the kit together. I am not real happy at the distance between the exhaust outlet and the engine room insulation. We have it planned to be mounted on a board inside the engine room door where the peg board originally was. It will fit although I will need to remove the hinges on my battery boxes as the heater will end up being too low to open them for service. If I run put the thru hull between the box that bayliner placed around the air intakes to keep water out and the bulkhead, I only have 4 1/2" of clearance total. The thru hull is 3" (hole size) and they say to keep 1" clearance around the exhaust jacket which I don't think will work. The pipe itself is 1.5 so maybe I would have 1/2" around.

Has anyone mounted their heater in this space? I am tempted to install in the port aft area under the cockpit to avoid these clearance issues. Any comments would be appreciated. I need to get the unit mounted so I can start installing the rest of the system.

[boatworkfl]

HI! I installed my Wabesto unit on an aluminum panel just to the left of the aft deck door, spaced an inch from the hull, the fresh air intake is just outside that door in the side of the steps.

It was my first install as a dealer for Shure marine, and on my own boat, be sure that you also install a larger resavour for the coolant, a good place is behind the steps from the back deck door, a 3 to 5 gal is necessary, if you use a 5 gal hot non-marine electric water heater it would be a good choice, be sure that you buy 1 or 2 spare fuel nozzels, if the unit starts smoking after warm up the nozzel needs to be swapped out. Use a Racor filter. Install extra shut off valves, and an air bleed off on each heat unit. Very good quality hose only.

You will be happy with the heater.

Pat S.

[Sunnydude]

boatworkfl wrote:
HI! I installed my Wabesto unit on an aluminum panel just to the left of the aft deck door, spaced an inch from the hull, the fresh air intake is just outside that door in the side of the steps.

Any pictures? I have all the other stuff you mentioned as my dealer provided it to me. Planned on saving lots of boat bucks by installing myself but the exhaust run is my problem.

[boatworkfl]

Sunnydude wrote:
Any pictures? I have all the other stuff you mentioned as my dealer provided it to me. Planned on saving lots of boat bucks by installing myself but the exhaust run is my problem.

I am in Florida, my boat is in Alaska, will not be back to AK untill end of May, you can PM me and I will give you my email and/or phone number, I have installed several of these units.

[Sunnydude]

boatworkfl wrote:
I am in Florida, my boat is in Alaska, will not be back to AK untill end of May, you can PM me and I will give you my email and/or phone number, I have installed several of these units.

PM sent. Thanks!

[Guest]

I did mine on my '92 3888 with the 4 cyl 210 Hinos. I use to have a layout but then the hard drive crashed and.....

Here is where I installed mine:

Installed on the Starboard side behind the Vacuum generator for Vacuflush beside the exhaust riser. Mounted on an alum "C" type mount with the solid side towards the engine. I used ridged exhaust tubing with a "U" on the bottom and then a 90 to the exhaust outlet. The outlet was about 3" below the front of the rear engine vents. The control panel from Sure marine was mounted on the front so I could access the codes by opening the engine hatch and looking in.

I installed the 2010 and it was more than enough to run you out of the boat.

From the unit to forward and put a 2 speed radiator /blower under the false cabinet bottom beside the stove - heater outlet to the head (made the wife real happy!) thermostat in forward state room. Came back to and replaced the under stair unit outlets to the galley and mid birth thermo in salon by the dash. Ran the hose back to a radiator blower for the salon with air intake from the salon (cut into the electric heater for the salon.) a squirrel cage blower radiator to heat the covered cockpit engine room air OK. I had heat exchangers for each motor (could keep motors warm or run when underway w/o the furnace on) I put the exchanges at the base of the motors and would circulate the engine coolant by natural heat rises. Came back and put a 5 gal reservoir on support from starboard stringer to deck then back to the furnace. It took about 80' of hose. Put shut off on each side of every radiator (more $$ but in the future you will thank me when you have to service one radiator)

Use a different color of antifreeze from what your engine uses.

I would consider Pex tubing when I do mine for the 47 in a few years

Good luck