happybuy diesel air heater

[dtcerrato]

@pabusnut
Lol. We will own four before long. Two will be permanently mounted one for parts. We also have an all in one unit which is a free standing portable unit. Plug into a cigarette lighter and have heat anywhere (like maybe under a skirted bus in Tok AK in winter!) 
Our current CDH exhaust is under the main diesel fuel tank with heat shields exiting at the side of the bus. In the fridged cold mornings the main fuel tank compartment is toasty warm (& so is the LR floor above!) - so we're reclaiming some waste - huh?

[sledhead]

we stopped in a rest area in Ontario Canada 2 years ago for the night and it was -9 f and very windy all night . ran the 12 k genny all night with 1 @ cube heater on high but set at 68 f in the front of the coach and 1 cube heater on low ( 900 watts ) set at 68 f  in the bath hall blowing into the bed room .

so if you have good insulation you should be fine with 2 small diesel heaters

me I like the boiler running but my wife likes the humming of the cube heaters ?? 

woman ... can't live with out them ... or something like that

dave 

[Bearmtnmartin]

I have been considering one of these. My Wanderlodge has radiant heaters fed by engine coolant so it seems to make sense to put a coolant heater in line. I cannot find any feedback on them but the price of course is very attractive. I think they are most likely made by the same factory that builds all the hot air heaters.

https://m.aliexpress.com/item/2051422774.html?_randl_currency=CAD&_randl_shipto=CA&src=google&aff_fcid=2c91e3f2811f4fa195accf8d4bac0c5a-1636428314867-09383-UneMJZVf&aff_fsk=UneMJZVf&aff_platform=aaf&sk=UneMJZVf&aff_trace_key=2c91e3f2811f4fa195accf8d4bac0c5a-1636428314867-09383-UneMJZVf&terminal_id=993a7241d0af41a188d5b7cd8e151922

[RJ]

As boilers go I replaced my aqua crap with a proheet 45 ( 45000 btu )

Dave -

Where did you source your ProHeat 45?

My coach has a very early production AH unit, and altho cabin heat and engine preheat work wonderfully, the domestic hot water side has failed, apparently a common occurrence with early production units. So I'm thinking about possibly replacing the AH, your comments intrigue me.

In the meantime, I have four Cadet "Perfectoe" 1000w, 120vac, toe-kick heaters - salon, galley, bath & bedroom - that easily kept me comfy in 12º weather last winter. I would use the diesel system more, except that where I'm parked, the exhaust is pointed right at my neighbor's door. Not good!

TIA

RJ

[luvrbus]

Every one working on heat and here I am working on my dash air in AZ , I have plenty of heat, 4 heat pumps ,Aqua Hot ,electric floor heat and 4 under the cabinet Cadets heater ,heated bays from the Aqua Hot alone keeps the RV warm and a damn good generator.I need AC my compressor siezed 

[chessie4905]

I see Amazon lists a coolant heater from far west too. Unfortunately, no reviews yet. Maybe there is a Facebook site for them.

[luvrbus]

I see Amazon lists a coolant heater from far west too. Unfortunately, no reviews yet. Maybe there is a Facebook site for them.

Reviews ,we have friends that travel in a 2012 Lady Liberty that writes reviews for sellers products,the seller ask a question and they take it from there.Quite a market they get 45 bucks to write 10 reviews.They write a lot of reviews and post everywhere from BBB to Facebook lol they will even write a bad review in the mix more bucks made there than on you tube 

[chessie4905]

I do a lot of reviews on Amazon. Not a nickel

[luvrbus]

I don't read many reviews or take their survey on Amazon or any other internet seller   

[Jim Blackwood]

I like the idea of reclaiming the exhaust heat. Unfortunately to run the Eiberspacher exhaust under the fuel tank just doesn't seem very practical. It does however, heat up the exhaust for the S60 so I suppose that's at least something. A little heat in the engine compartment.

I will be adding a solenoid valve which will let me completely isolate the heat to the coach or the engine or both. That will make it much more effective at heating the coach, as well as being more effective at preheating the engine.

Jim

[dtcerrato]

I just posted photos of my install on another board discussing CDHs and thought it may be useful here...

1st photo
PS HVAC compartment. Upper right duct is heated air to cabin, lower right duct and duct from the CDH is return air FROM CABIN - learned the hard way. Originally return air was not ducted and created "dirty air" in cabin - not now... The 10 Liter diesel fuel tank can be omitted if your pulling fuel directly from the main diesel tank. I have an aux. electric fuel pump that primes the main engine fuel lines with a valved pigtail on it that reaches the filler on the 10 liter tank so I know what my usage is. We had approx. 3 to 4 overnights of heat on one 10 liter tank or less if it's running on constant high. Except for a 10A glow plug start up for usually a minute or less these CDHs are extremely fuel and 12-24VDC efficient.

2nd
Left to Right = Exhaust & Intake, note exhaust is under main fuel tank compartment - shielded. Since the photo was taken exhaust line was extended with a 90 degree turn to exit from under the bus sideways. The intake silencer is mounted in a tin soup can as a debris shield although we don't run it while traveling.

3rd photo
Interior photo of front living room. Left is the remote controllable digital controller. Hot air flow controllable duct is seen in sofa front lower panel - under sofa is a Y that is ducted rearward to the bathroom - toasty throne & shower!
Since the photo was taken a CO alarm was added under the controller.

These CDHs have been successfully installed "IN" the cabin on the floor inside cabinetry but caution needs to be taken with the intense heat generated by the diesel fuel exhaust piping. It can be done & may even benefit from the heat it emits. A dense boiler insulation similar to turbo exhaust blanket can be used.
Two prerequisites to safe install IMO are: Have a permanently installed CO monitor and test run the WHOLE WORKS on high for an hour while MONITORING EVERYTHING at the highest operating temp.

[sledhead]

Dave -

Where did you source your ProHeat 45?

My coach has a very early production AH unit, and altho cabin heat and engine preheat work wonderfully, the domestic hot water side has failed, apparently a common occurrence with early production units. So I'm thinking about possibly replacing the AH, your comments intrigue me.

In the meantime, I have four Cadet "Perfectoe" 1000w, 120vac, toe-kick heaters - salon, galley, bath & bedroom - that easily kept me comfy in 12º weather last winter. I would use the diesel system more, except that where I'm parked, the exhaust is pointed right at my neighbor's door. Not good!

TIA

RJ

Hi RJ

I got mine from ADF DIESEL out of Toronto Canada as I get some parts from them as needed

They got a deal on them as they brought in a large quanity a year or 2 before I got mine . they are other locations , But the units came from Vancouver Canada .
If you want some help as to set up a new heating system I can help as the system I have now is amazing and looks like a lot but it is as simple as I could do it and works light years better than the aqua crap 2 system I replaced 

Pm me if you like

dave

https://adfdiesel.com/products/auxiliary-heating?gclid=CjwKCAiA1aiMBhAUEiwACw25MXT6NHtAFJQGQE5euZPO1tgcfN9CSGsmMRBIovPSGyZgepxKzxLI3xoC6X4QAvD_BwE

[sledhead]

more pics

dave

[sledhead]

Jim

I used a solinoid valve but replaced it with a power ball valve that works much better . like this but the 1 that I have has a small manual knob on top of it JUST in case of power problems

dave

ps WAY cheaper on amazon.com

https://www.amazon.ca/Motorized-Stainless-Polarity-U-S-Solid/dp/B06XWG6ZLS/ref=asc_df_B06XWG6ZLS/?tag=googleshopc0c-20&linkCode=df0&hvadid=335341764197&hvpos=&hvnetw=g&hvrand=1219026448051811979&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=1002295&hvtargid=pla-399647361722&psc=1

[luvrbus]

The Aqua Hot 2 didn't come on the market till 2006 are sure you replaced a  ll ?