in car heating

[Russwhitehouse]

Gents
I need to heat the cabin of my air cooled 911 which i use for historic rallying. Due to it being a competition car, the heat exchangers and a lot of the ascociated heater gubbins has been ditched to save weight. This hasn't proved a problem in the past as most of the events i enter are in the Summer months, which are generally scorching in this part of the world. However, i will be doing some winter events this year and it gets pretty Baltic inside, especially over a period of time.I have been looking at some of the electric heaters on the market and wondered if anyone had any recommendations? It doesn't have make the car a sauna, just take the edge off and make it a bit more comfortable.

[one eyed mick]

Truck cab heaters are what you need to look at if I remember they can be canned gas or deisel powered google em !

[Russwhitehouse]

Hmmmmmmm. Not sure a bottle of gas or a container of diesel is the best way forward when driving at speed!

[Penelope Stopit]

Russwhitehouse said:

Hmmmmmmm. Not sure a bottle of gas or a container of diesel is the best way forward when driving at speed!

Diesel is safer than petrol and I reckon One Eyed Mick thoughts are the best way of doing the job, you can even set the fuel heater up so that it kicks in on a timer

The other way is to get hold of a heater element that some manufacturers are fitting inside the heater units of their vehicles. You could fit the heater element inside a small fireproof box and incorporate a blower motor / fan to circulate the heat

[paintman]

http://www.eberspacher.com/products.html
http://www.webasto.com/gb/markets-products/car/hea...

Edited by paintman on Saturday 30th January 18:53

[one eyed mick]

^^^ they are the people to talk to!!

[blueacid]

Would it be worth looking at some of the heated jackets / etc that motorbikers wear? These connect up to the 12v supply of the bike and draw maybe 3-4 amps, far less than space heating the entire interior.

Something to think about maybe?

[Russwhitehouse]

It is certainly something worth considering blueacid. Less hassle and less expense too.

[finishing touch]

Take a leaf out of the light aircraft book.

Just a wrap around the exhaust pipe with an air scoop facing forwards, and the air exit has a flexible tube on it
that feeds into the cabin. No need for fancy fans, and its ultra light weight.


Paul G

[finishing touch]

Take a leaf out of the light aircraft book.

Just a wrap around the exhaust pipe with an air scoop facing forwards, and the air exit has a flexible tube on it
that feeds into the cabin. No need for fancy fans, and its ultra light weight.


Paul G

[Penelope Stopit]

finishing touch said:

Take a leaf out of the light aircraft book.

Just a wrap around the exhaust pipe with an air scoop facing forwards, and the air exit has a flexible tube on it
that feeds into the cabin. No need for fancy fans, and its ultra light weight.


Paul G

The problem is that the car would fill with water everytime it was driven through a deep puddle

[wildoliver]

finishing touch said:

Take a leaf out of the light aircraft book.

Just a wrap around the exhaust pipe with an air scoop facing forwards, and the air exit has a flexible tube on it
that feeds into the cabin. No need for fancy fans, and its ultra light weight.


Paul G

That's virtually the design of the factory heater system he's removed.

I'd replace the heat exhangers if it were me, the weight difference is not enough to compromise losing the ability to have heat. By all means lose all the piping motors and just have a short pipe in to the cabin with a fan and basic switch.

[finishing touch]

Penelope Stopit said:

finishing touch said:

Take a leaf out of the light aircraft book.

Just a wrap around the exhaust pipe with an air scoop facing forwards, and the air exit has a flexible tube on it
that feeds into the cabin. No need for fancy fans, and its ultra light weight.


Paul G

The problem is that the car would fill with water everytime it was driven through a deep puddle

Ah ! That would explain why 9 out of 10 pilots that crash into the sea are killed.
Obviously they drown due to water coming in through the heater.

Paul G

[Russwhitehouse]

Rreinstating the heat exchangers is not really an option as it would open up a can of worms with sump guard clearance not to mention cost of buying them as the old ones were rusty so were not kept.In principle the idea of a simple duct forward into the cabin taken off the exchangers, plus a blower with a simple on off switch could work though.

[Penelope Stopit]

Whats wrong with using a heater element and fan ?

[Penelope Stopit]

You could use a small 240V hot air blower and convert it to 12V

[Penelope Stopit]

Here you go I have solved your problem, well maybe



http://www.ebay.co.uk/bhp/car-hair-dryer

You could use more than one of these and will achieve your goal

[Penelope Stopit]

You could even purchase several 12V heater elements similar to those used in the hairdryers and wire them up in a fireproof box and then fit a decent speed fan motor

[Penelope Stopit]

My apologies, below is the solution, I missed this one earlier


http://www.ebay.co.uk/itm/12V-CAR-HEATER-2-IN-1-CO...

[Russwhitehouse]

Going back to my original question, yes i have been looking at electric heaters, but are any of them actually any good? They all look a bit ste to be honest and as has already been mentioned earlier in the thread, do they just drain power for very little gain in terms of heat?