How did you cut 145mm hole in caravan floor for diesel heater

Jared01

Active Member
Oct 28, 2016
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101
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Sydney
#1
Hello,

I purchased a diesel heater and will be installing in the coming days/weeks.

I am thinking of the craftright hole saw kit from bunnings ($20), use the largest diameter (127mm) then use a file to make the hole larger?

If I purchase that kit, I can use the other sizes to make a hole for the hot air duct/directional outlet.

https://www.bunnings.com.au/craftright-16-piece-holesaw-set_p6372275

Would be good if I had a "Reciprocating Saw" for my Bosch blue equipment, but that is quite expensive.

Wondering how others cut the ~145mm hole in the caravan floor?
 

mikerezny

Well-Known Member
Sep 11, 2016
748
1,348
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Mount Waverley, VIC
#2
Hi,
if there was sufficient clearance around the hole, I would use a jigsaw. Filing, by hand, to enlarge 127mm to 145mm is a lot of work!

Otherwise, I would drill a circle of much smaller holes with each one just touching the edge of the 145mm circle. Then use a file or small saw to cut out the pieces between the holes.

cheers
Mike
 

Bellbirdweb

Well-Known Member
Jan 24, 2014
1,876
2,678
113
Sydney
#3
I tried to use a hole saw I had which was designed for installing down lights in the ceiling but found there wasn’t enough space to fit it in, so I ended up using a jigsaw.
 

Jared01

Active Member
Oct 28, 2016
85
101
33
36
Sydney
#4
Perhaps I could use a hand saw to finish the hole off?

Unfortunately the caravan is parked on the street and I am limited to battery equipment.
 

Jared01

Active Member
Oct 28, 2016
85
101
33
36
Sydney
#11
Successfully cut the hole by using a hole saw and cutting a number of holes around the edge and then cutting the remainder pieces with the hole saw too then filing the rest.

Installed the heater finally. All wiring went through existing spaces (from under the bed, through the back of the drawers, under the sink, over the wheel arch/under the fridge and back to the battery). I had to cut the ring connectors on the end of the cable (for attaching to the battery) and clamps on larger ring connectors). I drilled about a 14mm hole for the controller connector to pop through and then mounted the controller as per picture.

Happy with the end result. Will post up some photos tonight.
 
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Jared01

Active Member
Oct 28, 2016
85
101
33
36
Sydney
#12
Some photos from the install.

Realised I didn't get a good photo of the muffler/exhaust or fuel tank/location.

Was trying to install it to the side under the bed but there were too many things underneath (gas lines, water pipes etc). Probably should have made it more towards the awning side but happy enough

I just bought my own 5L jerry and battery box (box was half price as there was a missing lid, so got it for $10, bargain).

I was expecting more hot air to come out faster from the exhaust, so I now am not so worried about where it is exhausting too (I thought the heat might heat up the bottom of the caravan floor or go up the side of the caravan etc) but it is quite mild. There is more noise coming from the combustion air silencer.

I ran the fuel line inside some split tubing and cable tied as shown in the photos.

All up happy with the product. Will give it a decent run on a 1 night trip on Saturday night.

I ended up buying the Belief Tuite 2.2KW heater from http://www.dieselheat.com.au
 

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BaldEd

New Member
Sep 24, 2017
1
1
3
Canterbury, NZ
#16
I didn't have enough room to be able to use a jigsaw so I drilled a ring of small holes, a few millimetres inside the circumference of the base plate shroud, then knocked the centre out. The rough hole edge I then smoothed to the exact hole circumference I needed with a small sandpaper drum fitted to my Dremel tool. The Dremel tool made a very quick and neat job of it. Sealed the plywood hole edge with paint to waterproof it and once the base plate was installed Silaflex'd around the shroud.
 
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Likes: Drover
Oct 7, 2016
44
95
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Shoalhaven
#17
You know the toasters that you get at the camping shops the ones with stainles steel mesh to defuse the heat.
Well if you bye a spair piece of mesh and a circle clamp, cut a circle of stainless mesh and pop it over the exhaust and then clamp it.
Its a lot better than trying to clean out a wasp nest.
I imagin that you have done it but dont forget to get the sickaflex
 
Likes: Drover

Jared01

Active Member
Oct 28, 2016
85
101
33
36
Sydney
#19
Looks great Jared01, how did the heater perform and when you ordered the heater did it come with all outlet grills and ducting fittings etc.
Cheers Pilchards.
I was going to try the heater out this weekend but the weather was so bad in Sydney so I postponed until next weekend.

I paid for the ducting that attaches to the grills and for 2 grills themselves. Belive it was $55 or 60 for that option.

Checkout the website I quoted and or get in contact with the seller. They sent me a very detaile list of options and accessories most of which I bought such as muffler, pump silencer etc.

Will post back when I gave given the heater a 1 night trial before our 3 week central australia trip I July when we will use every night