Whose has diesel forced air heat on their 410? Where did you install the heater and run the air ducts?
410 heat
- Thread starter Don Lucas
- Start date
Diesel Furnace
Hi Don, we have a P42 that I installed a Wallas 40D diesel forced air furnace. Very happy with it. Very efficient on fuel and power consumption. I'll defer to an owner of a like boat for ducting and furnace installation details.
Hi Don, we have a P42 that I installed a Wallas 40D diesel forced air furnace. Very happy with it. Very efficient on fuel and power consumption. I'll defer to an owner of a like boat for ducting and furnace installation details.
well there has to be be 410 people here who have installed a heater with experience to share, please lets hear it
I was in Fort Myers last week and it was in the 40s, you must have am impressive hatch :dance:
Mine has 2 ACs also. But I don't have a generator (seems stupid to order a boat with air conditioning and no generator) so I;ve never run my ACs.
I do now have a 2200W inverter generator and might just use it with some electric heaters. But last week's Florida trip suggests that a btter solution is needed maybe.
Diesel Furnace
Hi Don, not much in the form of help springing forth here. I had the same dilemma when it came time install our Wallas 40D. I'm not that familiar with your boat's layout, but some things to consider.
The Wallas dealer told me that the engine room would make a good location. Opted for the port side stern lazaret locker. I did not want to circulate engine room odors throughout the boat, besides the engine room was really cramped for space.
This lazaret locker was close to the fuel tank, house battery bank and to the stern transom for the exhaust discharge port. Consider all of these factors and a location should come to mind for your boat.
A buddy boater installed his in the cockpit locker of his boat.
Another factor to consider is routing of the three inch ducting. Each cabin should have at least one register including the head(s). I chose to hold off adding ducting to the forward cabin. Easy to do, just not needed at this time.
Following is an article I wrote about the 40D I installed in our boat.
==========
I finished installing a Wallas 40D diesel furnace in our P42. The unit is installed in the port side stern main deck locker, mounted on the magazine cabinet bulkhead. Seemed to be the best place considering it was close to the stern and the fuel tank, plus it can draw intake air through the opening into the quadrant well that also supplies air to the heat pump. I surface mounted the control panel on the aft cabin port side bulkhead just below and to the left side of the magazine cabinet. I used a three inch hole saw for the registers and a three and one quarter inch hole saw for the ducting.
Everything is connected: fuel, power, control panel, exhaust pipe and warm air ducting and registers. The dealer advised to install the system before ordering the exhaust pipe and sock because of its high cost. One duct and two registers are located in the aft cabin at the base of the double berth, with another duct with two registers in the main cabin port side setee. Since we do not plan on installing a washer/dryer combo I'm going to use the engine compartment vent duct route for part of the warm air ducting.
One duct runs behind the rudder post to registers located at the base of the berthing cabinet port and starboard side. This has worked out pretty well because I can direct heat into the aft head. I installed two registers at the base of the port setee and one under the navigation station.
The new furnace has made a huge difference in cabin comfort for the admiral while on the hook. The system is quiet, efficient and really pumps out the heat. Cold weather comfort should make a big difference during winter cruising.
11/2014 Update: Installed the Wallas 40D diesel furnace in March 2006. Have not touched the unit since then, but have used it many times to keep the interior warm during our winter cruises. Simple to operate, thrifty fuel and power consumption and quiet. Unless there is below freezing temperatures outside, a middle thermostat temperature setting is sufficient.
Hi Don, not much in the form of help springing forth here. I had the same dilemma when it came time install our Wallas 40D. I'm not that familiar with your boat's layout, but some things to consider.
The Wallas dealer told me that the engine room would make a good location. Opted for the port side stern lazaret locker. I did not want to circulate engine room odors throughout the boat, besides the engine room was really cramped for space.
This lazaret locker was close to the fuel tank, house battery bank and to the stern transom for the exhaust discharge port. Consider all of these factors and a location should come to mind for your boat.
A buddy boater installed his in the cockpit locker of his boat.
Another factor to consider is routing of the three inch ducting. Each cabin should have at least one register including the head(s). I chose to hold off adding ducting to the forward cabin. Easy to do, just not needed at this time.
Following is an article I wrote about the 40D I installed in our boat.
==========
I finished installing a Wallas 40D diesel furnace in our P42. The unit is installed in the port side stern main deck locker, mounted on the magazine cabinet bulkhead. Seemed to be the best place considering it was close to the stern and the fuel tank, plus it can draw intake air through the opening into the quadrant well that also supplies air to the heat pump. I surface mounted the control panel on the aft cabin port side bulkhead just below and to the left side of the magazine cabinet. I used a three inch hole saw for the registers and a three and one quarter inch hole saw for the ducting.
Everything is connected: fuel, power, control panel, exhaust pipe and warm air ducting and registers. The dealer advised to install the system before ordering the exhaust pipe and sock because of its high cost. One duct and two registers are located in the aft cabin at the base of the double berth, with another duct with two registers in the main cabin port side setee. Since we do not plan on installing a washer/dryer combo I'm going to use the engine compartment vent duct route for part of the warm air ducting.
One duct runs behind the rudder post to registers located at the base of the berthing cabinet port and starboard side. This has worked out pretty well because I can direct heat into the aft head. I installed two registers at the base of the port setee and one under the navigation station.
The new furnace has made a huge difference in cabin comfort for the admiral while on the hook. The system is quiet, efficient and really pumps out the heat. Cold weather comfort should make a big difference during winter cruising.
11/2014 Update: Installed the Wallas 40D diesel furnace in March 2006. Have not touched the unit since then, but have used it many times to keep the interior warm during our winter cruises. Simple to operate, thrifty fuel and power consumption and quiet. Unless there is below freezing temperatures outside, a middle thermostat temperature setting is sufficient.
Last edited: