Instant Gas Hot Water system

Submitted: Sunday, May 04, 2008 at 09:13

Member - Drew T (Melbourne)

Looking at putting an instant LPG gas hw system in a caravan for hw to the sink and for the occassional shower. Caravan is typically parked on a bush block with no 240v (although the van does have a substantial solar/bty setup). Prefer a system that is fully automatic & no external power requirements as different people use the van & I want to keep it as simple as possible. 2 systems i have found are:
1. 6 l/min unit from which uses D cells to automatically light the gas. approx $350
2. Bosch 10H (same as Bosch WR 250-1 ?) unit which is 10 l/min & uses 'hydropower' (no elec required) to light the gas. approx $650

Anyone used either unit or know of similar systems that might meet my needs?
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AnswerID: 301951   Submitted: Sunday, May 04, 2008 at 10:09

Dunaruna replied:

I have the 13H (same design as the 10 just a bit bigger). Have used it for 5 years now, no problems. The hydro start is great.
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AnswerID: 301965   Submitted: Sunday, May 04, 2008 at 11:26

Member - kevin Y (SA) replied:

lived in c/p for a few years -----installed a bosch one which was battery start, battery lasted all the time i was there- 3 yrs ---bat is only used for ignition --so wouldlook hard at the cheaper one as well
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AnswerID: 301967   Submitted: Sunday, May 04, 2008 at 11:33

Member - peter C (VIC) replied:

hillbilly camping gear have an lpg system with auto ignition which looks pretty good to can call them on 0407540005 peter Thumbs UpThanks 0
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AnswerID: 301969   Submitted: Sunday, May 04, 2008 at 11:55

David replied:

Hi Drew T

Please have a look on ebay for Item number: 220231007673. This is a gas hot water system that I have and find it really good. I use it for filling my spa and it is a great unit. It runs on water pressure and has 2 d cell batteries for ignition only. Please have a look at the item and hope it helps you.

Give a man a fish and he will eat for a day. Teach him how to fish, and he will sit in a boat and drink beer all day.
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FollowupID: 568090   Submitted: Sunday, May 04, 2008 at 19:51

Peter 2 posted:

We've got one of these too, installed in a shed to supply a shower and tub/sink.
It works really well using either mains pressure or pressure from a12v pump, we've had it hooked up both ways, great hot water for a shower.
I've mounted it inside on the wall and vented the flue back out side.
The gas bottle sits outside and I've run the hose through the wall.
Great unit and I highly recommend them.
As long as you vent the flue back outside and don't mount the unit on a combustible surface/wall you shouldn't have any problems in a stationary van.
1996 Oka Motorhome
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FollowupID: 568099   Submitted: Sunday, May 04, 2008 at 20:35

Member - Drew T (Melbourne) posted:

thanks .. this is the same as the 6 l/min unit i refewrred to but its interesting to see their is a new 10 l/min model
thanks again
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FollowupID: 568125   Submitted: Monday, May 05, 2008 at 09:10

wazzaaaa posted:

Wow the bosh 10L has bad reviews, have a look at
Site Link
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FollowupID: 568211   Submitted: Monday, May 05, 2008 at 17:54

Member - Drew T (Melbourne) posted:

jeez they are 3 pretty bad reviews!
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AnswerID: 301995   Submitted: Sunday, May 04, 2008 at 15:16

Paul Grabonski. Vic replied:

To comply with the gas installation regulations you would need to mount the instantaneous hot water system externally. There is no instantaneous hot water system approved for internal caravan use.
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FollowupID: 568051   Submitted: Sunday, May 04, 2008 at 15:21

Paul Grabonski. Vic posted:

The AusJ unit has no AGA Aus approval. Means they can sell the unit and you are not allowed to use it. Yes the laws are an ass at times.
Personally would buy the 10L unit as 6L is slow. 6L would be maximum with maximum pressure. In reality possibly 4 to 5L in most installations.
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FollowupID: 568055   Submitted: Sunday, May 04, 2008 at 16:27

Nomadic Navara posted:

To comply with the Australian rules the combustion air must be drawn from the outside air and flued to the outside air. As yey, no one makes a unit to comply.

Hanging one on the outside should be OK - just don't install it inside.

Retired radio and electronics technician
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