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Fitting A New Heater Unit To Mpi


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#1 dan1zo

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Posted 15 April 2019 - 03:21 PM

Hey people,

I've gone and removed my old heater and will be replacing with a nice tidy unit from T7 design to actually get some heat in the winters!

https://www.t7design...-vents-12v.html

 

When i took off the old unit the water that came out was really dark rusty, the pipes seem to be 'crispy' on the inside like they are lined with rust.

Whats the advice on flushing the system? I'm not really sure where to start.

 

Or is it better to just get a big load of pipes and just replace the lot?

 

I don't fancy having all that gunk going through my nice new unit as its probably why the old one is dead.

 

Cheers all

Dan



#2 riktanius

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Posted 15 April 2019 - 03:25 PM

I want to know about this too. I havent decided what I wanted to do about the heater unit, but I know I will be replacing it and might be doing the same thing you are. 



#3 dan1zo

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Posted 15 April 2019 - 03:43 PM

I'll post some updates as i fit it in. Its a really lightweight unit and blows hard too (i hooked it up to a battery i had lying around).

Will be useful to have a bit more leg room as its tiny compared to the standard one.



#4 roblightbody

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Posted 15 April 2019 - 04:03 PM

Fascinated to see how this goes!

#5 Steve220

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Posted 15 April 2019 - 05:32 PM

So that just circulates? Or do you intend to use a fresh air feed for it still?

#6 Tupers

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Posted 15 April 2019 - 06:33 PM

Before you go fitting that you might want to look at the heater matrix inside the standard unit.

The get clogged with rust and sludge just like any other radiator and loose efficiency over time.

#7 dan1zo

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Posted 16 April 2019 - 08:54 AM

So that just circulates? Or do you intend to use a fresh air feed for it still?

Its a circulating heater, but i may play with the possibility of running the fresh air feed to it too.

 

Before you go fitting that you might want to look at the heater matrix inside the standard unit.

The get clogged with rust and sludge just like any other radiator and loose efficiency over time.

Yeah i though of replacing the matrix and cleaning it out, but i saw that little unit and thought why not just get a more efficient, smaller modern unit. Less hassle and also nice to have the directional vents for my feet too.

It is also that the fan in the unit was blowing about as hard as a mouse with asthma. I'd had a leak where the panels around the window had rusted away and i suspect it got pretty water damaged since it was ages until i got it fixed.

The car had been sitting untouched for about 6 years before i got it driving again in October last year. So there is a lot still to do to get him back to my daily drive.

 

I think i will end up having to replace the hoses right up to the thermostat, having a feel around, they are a bit crusty too. Or do you think i can give them a good clean out to get rid of all the crud that has built up?


Edited by dan1zo, 16 April 2019 - 09:59 AM.





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