This popped up in a search on the Good Old Boat site: HYDRONIC HEAT
I am planning on installing a hydronic heater system on my 1978 Morgan 382. The article by Graham Collins in the September 2012 issue is perfectly timed. I do have a couple of questions for Graham. One: if during warm weather, we need hot water for showers but not cabin heat, does not turning on the radiator fans prevent the heat from coming up? Two: how many amps does the system draw with the heater and both radiator fans going? *–Jim Cleary* GRAHAM REPLIES Excellent questions. *One*: With the fans turned off there is not an appreciable heat increase in the cabin, but obviously there must be some. I have been considering modifying the system simply because it would be more efficient to only heat the water tank if that is desired. To do so one could add a Y valve and a T such that the fluid can be directed only through the water heater. *Two*: Per the specification sheets, the Espar unit draws 4 amps on high, 1.9 on low. The fans in the radiators draw .9 (large) and .35 (small) each. The Espar runs on high until the recirculating fluid reaches the set point (160F), at which time it throttles back to low. In practice, my system takes about 20 minutes with the Espar running on high to heat the 6-gallon water tank, a bit more if the radiators are also on. Thus for my usual use, the energy consumption is about 3 amp hrs. and about .07 gallons of fuel. Hope that helps! *–Graham Collins* On 6 February 2016 at 11:58, Ken Heaton <kenhea...@gmail.com> wrote: > One of our fellow CnC listers did a Hydronic install in his own boat and > had an article published in the magazine Good Old Boat about it: > > HOT WATER, WARM BOAT > BY GRAHAM COLLINS > > A hydronic system extends the sailing (and showering) season. Our C&C 35, > Secret Plans, was previously used as a racing boat, so the hot-water system > was stripped out at some time before we purchased her. As I’m not a fan of > cold showers, this had to be addressed. We also wanted to be able to heat > the boat so we could extend our cruising season a bit longer into the > spring and fall. We keep the boat on a mooring, so shorepower is not > typically available. The available fuel sources were diesel and propane, > and we wanted to install only one system... > > *Article Number:* 5583 > *Issue:* 86 - September/October 2012 > *Page No:* 27-29 > *Read Online:* Not Available Online > > On 6 February 2016 at 11:48, Tom Buscaglia via CnC-List < > cnc-list@cnc-list.com> wrote: > >> Speaking of diesel heaters, ever since we brought Alera out from Lake >> Ontario I have wanted to install a hydronic heater so that in addition to >> heat we would have hot water. So, every year when I go to the Seattle Boat >> show I gather materials and every the the amount of boat bucks, and my fear >> of screwing the installation up makes me put it off another year. >> >> Anyone have a hydronic setup? >> >> Tom Buscaglia >> S/V Alera >> 1990 C&C 37+/40 >> Vashon WA >> P 206.463.9200 >> >> >> > On Feb 5, 2016, at 4:24 PM, cnc-list-requ...@cnc-list.com wrote: >> > >> > Message: 8 >> > Date: Fri, 05 Feb 2016 16:23:56 -0800 >> > From: Russ & Melody <russ...@telus.net> >> > To: cnc-list@cnc-list.com >> > Subject: Re: Stus-List Diesel Heaters and installation >> > Message-ID: >> > <mailman.179.1454718281.1678.cnc-list_cnc-list....@cnc-list.com> >> > Content-Type: text/plain; charset="iso-8859-1"; Format="flowed" >> > >> > >> > Hi Steve, >> > >> > I should have listed install location in the >> > "Cons:" list of the Newport heater. It can be tricky. >> > >> > The link I sent is for Newport diesel bulkhead >> > unit. The D2 has a huge advantage on heat output >> > on low settings, not to be overlooked. The >> > Admiral & I are a big fan of radiant heat, also not to be overlooked. >> > >> > Diesel is the fuel for both heaters and tank >> > location with proper venting is the same for >> > both, so diesel odour is a wash, so to speak. The >> > tank can be almost anywhere for either unit and >> > if elevation is such that gravity feed is not >> > going to work for the bulkhead heater then you >> > get a little impulse pump similar to what the >> > Espar uses. I would see about putting the tank in >> > the cockpit combing area, that's high enough and >> > easy to fit a deck fill to keep everything >> > outside. Either heater would like a 2 - 4 gallon >> > tank since you're looking at up to 1 gallon a day >> > use in cold conditions maybe a bit less for the D2. >> > >> > On the 40' wooden boat I'm fitting out for >> > retirement cruising I will have both types of >> > heaters so I won't need to choose which one is best. :) >> > >> > Cheers, Russ >> > Sweet 35 mk-1 >> > Vancouver Island >> > >> > >> > At 03:24 PM 05/02/2016, you wrote: >> >> Thanks for the helpful replies, all. >> >> >> >> Russ, I really love the idea of the newport >> >> heaters, to be honest, I like the idea of solid >> >> fuel the most. A proper wood fire is one of my >> >> favourite things. But the only units worth >> >> getting are expensive wood stove types, which >> >> are super nice, but I can't justify the expense >> >> and they have drawbacks on a boat. The espar is >> >> appealing because it's out of the way. The >> >> problem for me with the diesel newport is the >> >> fuel. I have an A4 powered boat and one thing I >> >> really like about my boat is that it doesn't >> >> smell like diesel! The bulkhead diesel heater >> >> would necessitate a gravity tank somewhere >> >> inside and I'm not sure where I'de have space, >> >> maybe in the hanging locker. I'm concerned about >> >> the diesel smell. Most of what I've read about >> >> them is good however and to your point, maybe >> >> more heat than the D2, less money for sure. It's >> >> still an option, will my boat smell like diesel?? >> >> >> >> Steve >> >> Suhana, C&C 32 >> >> Toronto >> >> >> >> On Fri, Feb 5, 2016 at 6:15 PM, Andrew Burton >> >> via CnC-List <<mailto:cnc-list@cnc-list.com>cnc-list@cnc-list.com> >> wrote: >> >> How much fuel does the Espar burn an hour? I use >> >> a propane tent heater the warms the cabin for 6 >> >> hrs on a small canister, but it's not dry heat. >> >> It takes the chill off, but doesn't dry the inside on a foggy Maine >> evening.? >> >> >> >> Andy >> >> C&C 40 >> >> Peregrine >> >> >> >> >> >> Andrew Burton >> >> PO Box 632 >> >> Newport, RI? >> >> USA 02840 >> >> >> >> +401 965? 5260 >> >> _______________________________________________ >> >> Email address: >> CnC-List@cnc-list.com >> To change your list preferences, including unsubscribing -- go to the >> bottom of page at: >> http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com >> >> >
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