General Thoughts About Heaters:
When we decided to install a heater, as you did, we looked at drip-diesel and propane heaters. We never considered an inline forced air system because of ducting, space requirements and complexity. We looked at Dickinson drip-diesel and Refleks. Besides reading the literature we talked to several owners of Dickinson drip-diesel heaters. The general consensus was diesel heaters provide excellent heat output and are very efficient but are dirty and are subject to flue blowback. In the worst case, a blowback can deposit soot over the interior of the boat. The cause of blowback is a pressure differential between the boats interior pressure and outside pressure. When the outside pressure is increased by a gust of wind, a downdraft in the flue occurs. The end result is blowback. Based on the information from owners of drip-diesel systems, we decided to use clean propane heat.
Iduna came equipped with two 20 lb. horizontal propane tanks housed in two outside forward lockers. These are in front of the cabin house and to each side of the mast. The boat came with a Force 10 propane heater. These units are terribly inefficient and allow exhaust gasses to enter the cabin. The kerosene fueled Force 10 has even less to offer. Beside
Our experience with the P9000 can be summarized as follows:
- No blowback issues,
- Makeup air is preheated before it enters the fire box which increases the efficiency of the unit,
- A 20 lb. propane tank provides 20 hr. of heating - low fire setting,
- The forced air fan is a plus but is somewhat noisy at the high fan setting,
- The rocker ON/OFF switch needs a guard to prevent accidentally turning the fan ON. (Our unit is located at the end of the starboard berth/settee and my foot has turned on the fan)
- The fireplace effect adds warm light to the cabin and provides a certain amount of romance on a cold night,
- The heat from the unit is more than enough to make the main cabin and galley/nav area comfortable warm.
- Cabin heat up is fast when the blower and fire are set to Hi.
- Once the cabin is warm, a low heat and lower blower setting will keep the main cabin and galley/nav area toasty warm.
- The only warm air that reaches the forward sections of the boat is by diffusion. These sections are chilly but not cold.
- The temperature of the stove pipe is about 120 degrees F. Once can touch the stove pipe but can not leave their hand on the pipe very long.
- No cabin air is used in the combustion process.
- The unit has an air-tight door seal. Carbon monoxide can not enter the cabin.
We did several Fall two-week trips on the Chesapeake. It was always nice to have heat in the boat, especially, when waking. On one trip, we spent 3-days at anchor while a cold front passed through. One day, the outside temperature remained in the low 30’s F. We ran the heater all day on a low setting. The boat was very warm and we were comfortable. Our SOP is to turn off the heater when we crawl into the bunk at bedtime. You can guess who lighted the heater in the morning. Oh, I need to mention, IDUNA’s hull is insulted from the waterline up - factor y installed by Channel Cutter Yachts, the Canadian builder.
Photos of the heater may be found at http://www.samlmorse.com/forum/gallery/album38 - files “Heater 1C” and “Heater 2c”. I have other photos but they are on a crashed hard drive.
The Delft tile behind the heater was installed by us. I stuck the tile to the bulkhead with a glue similar to “liquid nails” - Home Depot marine. I used hot glue to hold the tile in place during installation. A bead of glue was placed on the back of the tile, about 1/2" away from all four edges. Hot glue was place in the center of the tile. A heat gun was used to keep the tire warm. Once the tile was in place, I warmed the tile with the heat gun again and applied hand pressure to push the tile flat on the bulkhead. Instead of using tile grout, I used the best latex caulk I could buy at Home Depot marine (< $4.00).s being terribly inefficient they pollute the cabin atmosphere with exhaust gasses and the smell of burned kerosene (similar to burned jet fuel). One couple we know, burned mineral spirits in their Force 10. We were only too pleased to leave the boat after our visit. By default, the only option left was Dickinson’s P9000 and P1200. We purchased the P9000 unit because it is a fireplace, has a coaxial chimney and forced air blower.
xperience with the P9000 can be summarized as follows:
- No blowback issues,
- Makeup air is preheated before it enters the fire box which increases the efficiency of the unit,
- A 20 lb. propane tank provides 20 hr. of heating - low fire setting,
- The forced air fan is a plus but is somewhat noisy at the high fan setting,
- The rocker ON/OFF switch needs a guard to prevent accidentally turning the fan ON. (Our unit is located at the end of the starboard berth/settee and my foot has turned on the fan)
- The fireplace effect adds warm light to the cabin and provides a certain amount of romance on a cold night,
- The heat from the unit is more than enough to make the main cabin and galley/nav area comfortable warm.
- Cabin heat up is fast when the blower and fire are set to Hi.
- Once the cabin is warm, a low heat and lower blower setting will keep the main cabin and galley/nav area toasty warm.
- The only warm air that reaches the forward sections of the boat is by diffusion. These sections are chilly but not cold.
- The temperature of the stove pipe is about 120 degrees F. Once can touch the stove pipe but can not leave their hand on the pipe very long.
- No cabin air is used in the combustion process.
- The unit has an air-tight door seal. Carbon monoxide can not enter the cabin.
We did several Fall two-week trips on the Chesapeake. It was always nice to have heat in the boat, especially, when waking. On one trip, we spent 3-days at anchor while a cold front passed through. One day, the outside temperature remained in the low 30’s F. We ran the heater all day on a low setting. The boat was very warm and we were comfortable. Our SOP is to turn off the heater when we crawl into the bunk at bedtime. You can guess who lighted the heater in the morning. Oh, I need to mention, IDUNA’s hull is insulted from the waterline up - factor y installed by Channel Cutter Yachts, the Canadian builder.
Photos of the heater may be found at http://www.samlmorse.com/forum/gallery/album38 - files “Heater 1C” and “Heater 2c”. I have other photos but they are on a crashed hard drive.