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EVs and the heater on a cold morning !

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noel shelley22/11/2021 09:46:24
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One issue with Evs is the fact that there is no waste heat from the thermally inefficient internal combustion engine to heat the passenger compartment. From what I've seen of an EV on turning the heater on it almost halved the distance the computer told the driver he could travel. May be some of those with EVs on here could confirm this - or are EVs only for warm climates ? Will EVs be insulated as our new home will and only offer recirculated air ? Just a few thoughts as winter sets in. Noel.

Michael Gilligan22/11/2021 09:54:07
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An excellent thread-starter, Noel yes

I foresee a market for duvet-like coverings for the vehicles.

MichaelG. angel

John Haine22/11/2021 09:55:53
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Since the air has to be heated electrically I suspect that there's a setting to switch on the heating whilst the car is charging at a set time. Or from your phone app.

JasonB22/11/2021 10:00:41
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As John says car can be set to defrost before you unplug in the morning so it's all toasty and warm when you walk out the door. Far better than leaving a IC engined car running on the drive for 5mins just to melt teh ice.

Nick Clarke 322/11/2021 10:06:00
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Posted by JasonB on 22/11/2021 10:00:41:

As John says car can be set to defrost before you unplug in the morning so it's all toasty and warm when you walk out the door. Far better than leaving a IC engined car running on the drive for 5mins just to melt teh ice.

My 1969 VW Type 4 had a separate hot air heater running on petrol to do the same job.

Nick Clarke 322/11/2021 10:06:56
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But wouldn't suitable clothing be the answer?

r.jpeg

JasonB22/11/2021 10:09:42
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Nick, there won't be enough sheep skins for that when we all have to go to a plant based dietdevil

noel shelley22/11/2021 10:23:34
1349 forum posts
21 photos

Dress as Nick has shown and ride a 1.5Kw electric motor cycle. The ultimate in economy ? Pre heat may be fine but what if the journey is more than 15 mins or so ? I want to go to Oxford (130m), 2 1/2 hours away ?  Noel.

Edited By noel shelley on 22/11/2021 10:28:54

Martin Kyte22/11/2021 10:47:55
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Posted by noel shelley on 22/11/2021 09:46:24:

One issue with Evs is the fact that there is no waste heat from the thermally inefficient internal combustion engine to heat the passenger compartment. Noel.

Not the whole story as far as I gather. Regenerative braking puts energy back into the battery but if the battery is full then brking energy either is dissapated in conventional friction brakes of resistive loads whch do then generate heat that can be used for cabin heating.

regards Martin

blowlamp22/11/2021 10:56:45
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1618 forum posts
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Newer models have 'Pedalo' mode.

Martin.

Oven Man22/11/2021 10:58:41
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Even an electric vehicle generates from the motor and from the battery, sufficient to need liquid cooling, so cabin heating on a long journey should not be a problem.

Peter

Adam Mara22/11/2021 11:11:35
168 forum posts
3 photos

My late FIL waa an upper turrent gunner in a RAF B17 bomber, Pretty sure he told us he had an electrically heated suit, maybe that will be the answer. Loved the seat warmer in my car when I could drive, but an eye stroke a couple of years ago put an end to my driving.

not done it yet22/11/2021 11:18:29
6812 forum posts
20 photos

Many (better) models are fitted with heat pump devices. All batteries produce heat when either charging or discharging, so some heat is available, soon after starting on a journey. At other times I would guess the heat pump might take heat fro the air? Add to that a heated steering wheel and seat options, will provide quite a lot of personal comfort for the driver at much reduced power draw.

On top of that, halving the range with just cabin heating is a ridiculous claim, unless the battery is already a small one (so a ‘city’ car rather than a long distance model.

Most certainly the range is reduced during cold weather, but also for ICE cars as well (although not to such an extent).

Personally, I don’t see the initial claim to be relevant for (most) current models.

Too many ‘negative’ postings turn up re BEVs. They are improving all the time - and becoming cheaper.

Mark Rand22/11/2021 11:20:55
1274 forum posts
28 photos

If the vehicle has air conditioning, there should be no reason that it can't be used as a heat pump for heating.

DMB22/11/2021 11:25:20
1312 forum posts
1 photos

Nick s clobber is suitable for the old crocks run. Does this mean all turned full circle? Ha,ha, no offence intended, Nick.

Howard Lewis22/11/2021 11:31:01
6116 forum posts
14 photos

Um; I'd have had a rough time yesterday. Driving 142 miles each way (3 hour journey; longer returning because of motorway congestion ) to volunteer at The WaterWorks Museum, on battery power.

And I used the heater, but got 65 mpg on a small Euro 6 compliant petrol car and still have half of a 35 L tank left.

Battery, motor, and control system development has some more way to go to match the ICE powered vehicle,, but will get there, but possibly not in my driving lifetime!

Howard

SillyOldDuffer22/11/2021 11:32:47
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Posted by Nick Clarke 3 on 22/11/2021 10:06:00:
Posted by JasonB on 22/11/2021 10:00:41:

As John says car can be set to defrost before you unplug in the morning so it's all toasty and warm when you walk out the door. Far better than leaving a IC engined car running on the drive for 5mins just to melt teh ice.

My 1969 VW Type 4 had a separate hot air heater running on petrol to do the same job.

I bet we've got loads of early motoring stories between us.

I remember my dad's first car had holes in the floor, and being wrapped in blankets: this was in Northern Ireland. Mum says the car (an early Ford Prefect) had to be rolled downhill to start it on frosty mornings, it needed oil every month, the clutch slipped, and it jumped out of gear. Later, he took us to Malta, where we cooked in a brand-new Ford Anglia, plastic seats. This was reliable, but vibrated badly above 65mph. Dad had to crawl underneath twice a year with a grease gun. My uncle flipped a Morris Minor taking a roundabout legally at 30mph. 'Oh yes', said a sympathetic policeman, 'they do that'. Corrosion was an endless problem: can anyone explain why the British Car Industry took so long to apply underseal as standard on cars sold in a country were we salt the roads? All the external welds on my mate's mini rusted through. Exhausts had to be replaced, sills welded, and loads of other stuff like rubber gaiters and universal joints failed regularly. The electrics often misbehaved. Car maintenance was almost a second career - weekends were spent discussing car problems with the neighbours and fiddling with points and spark plugs. I could go on...

Howard Lewis22/11/2021 11:42:10
6116 forum posts
14 photos

My father's Vauxhall 10 had electric windscreen demisters! NOT original equipment, nor a heater!

He stuck the two onto the screen with some glue, (Not very effective,they need to be refixed at least once a year )

Could just about keep the screen clear on a long journey on a cold night. Black bakelite casing, think the brand was "Air Flow"

Howard

bernard towers22/11/2021 11:47:59
619 forum posts
109 photos

Howard , Trico used to do something like that they were fixed to the screen with suckers (pun)

Howard Lewis22/11/2021 11:58:40
6116 forum posts
14 photos

When I first got my very secondhand Ford 100E van, before I could afford a heater, I fitted a chromium plated Lucas demister to the screen That fell off regularly as well!

In the hard winters of '61, 62, 63 driving from Shrewsbury to London, and back, (Sheepskin boots, gauntlets, dufflel coat and scarf, the heater, on Demist (no heat to cabin ) left only the front screen clear of ice (Even that had a rim of ice ) with all other glass frosted, inside and out.!

The good old days?

Howard

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