gmarcucio
Posts: 91
Joined: Wed May 15, 2013 11:09 am
Location: Hagaman, New York

Instant Heat... so far

Sun Dec 08, 2013 7:02 pm

I haven't had my I-MiEV for a winter yet but I'm trying to prepare. I read on this forum from some members that it isn't great for interior heat. With the cold weather in my area now (upstate New York) I have noticed the heat is not that bad but takes a while to heat up if you are not pre-heating while plugged in. I installed a 12 Volt heater in the I-MiEV today. it just plugs into the 12V power outlet. I'm using it just as instant heat while the car heater is coming up to temperature. When the car heater gets warm (about 10 minutes) then I turn off the add-on heater and continue with the car heater to heat the cabin. I tried it out today at 27 degrees and it seemed to work pretty good. I made a temporary mount for it in the cup holder out of a beer can just to try it out. if it continues to work ok I will make a much nicer looking mount for it.

Image

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tonymil
Posts: 274
Joined: Mon Apr 16, 2012 6:50 am
Location: Latham, NY

Re: Instant Heat... so far

Mon Dec 09, 2013 7:07 am

I'm in Albany and I get by with a heated vest, a warm coat and the seat heater until the car heater warms up. And I find that even in very cold weather the car heater warms up pretty quickly. Because of the vest and seat heater, I find I don't need to whole cabin warmed up to feel comfortable, as long as I feel warm air blowing on me I'm ok.

Tony

Don
Site Moderator
Posts: 2882
Joined: Thu May 10, 2012 3:55 pm
Location: Biloxi MS

Re: Instant Heat... so far

Mon Dec 09, 2013 7:25 am

I bought one of those $10 heater/defrosters a couple weeks ago - I'm hoping it will provide enough heat to keep the windshield de-fogged without needing to run the car's heater, but I'm not so sure. It only produces about 150 watts of heat (roughly 10% of a standard household plug in ceramic heater) and that would seem to be a drop in the bucket for a car interior on a 27 degree morning. Preheating the car with the EVSE will do lots more and that way you leave home with a heater system full of hot water which can save you several miles of range

I like your innovative mounting system. I've been trying to decide how to mount mine and I'm going to give that a try. Thanks for sharing!

Don
2012 iMiEV SE Premium, White
2012 iMiEV SE, White
2017 Chevy Volt Premier
2014 Ford Transit Connect XLT SWB wagon, 14,000 miles
1979 Honda CBX six into six

PV1
Site Moderator
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Contact: Website

Re: Instant Heat... so far

Mon Dec 09, 2013 9:33 am

Preheating the car with the EVSE will do lots more and that way you leave home with a heater system full of hot water which can save you several miles of range

If only we could keep the circulating pump running in the heater loop. Then we could use preheat to warm up a 5 liter "thermos bottle". This would work good with no fan (or 1 click on) with fresh air to the windshield with an insulated heating system. Right now, I keep fresh air to the windshield with no fan, and that can pretty quickly cool the interior since the pump only runs with the heater on.
:idea: :idea: :idea: :!: :!:

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Thanks.

gmarcucio
Posts: 91
Joined: Wed May 15, 2013 11:09 am
Location: Hagaman, New York

Re: Instant Heat... so far

Mon Dec 09, 2013 8:15 pm

Don wrote:I bought one of those $10 heater/defrosters a couple weeks ago - I'm hoping it will provide enough heat to keep the windshield de-fogged without needing to run the car's heater, but I'm not so sure. It only produces about 150 watts of heat (roughly 10% of a standard household plug in ceramic heater) and that would seem to be a drop in the bucket for a car interior on a 27 degree morning. Preheating the car with the EVSE will do lots more and that way you leave home with a heater system full of hot water which can save you several miles of range

I like your innovative mounting system. I've been trying to decide how to mount mine and I'm going to give that a try. Thanks for sharing!

Don


I purchased this heater for the times I cannot pre-heat the cabin with the EVSE. I figure I can get in the car and fire this little heater up while the car heater gets warm and then shut down the small add-on heater. Maybe I'm just better off starting the car ahead of time and let it warm up since I really don't have to worry about lost range from the heater. My round trip to work is 20 miles.

jray3
Posts: 1658
Joined: Tue Dec 06, 2011 1:05 am
Location: Tacoma area, WA
Contact: Website

Re: Instant Heat... so far

Tue Dec 10, 2013 1:50 pm

PV1 wrote:If only we could keep the circulating pump running in the heater loop. Then we could use preheat to warm up a 5 liter "thermos bottle". This would work good with no fan (or 1 click on) with fresh air to the windshield with an insulated heating system. Right now, I keep fresh air to the windshield with no fan, and that can pretty quickly cool the interior since the pump only runs with the heater on.


To avoid hacking the stock pump controls, what about adding a second circ pump in series, including it's own heater element, with or without a storage tank? That would enable one to preheat without losing SOC even while charging on 120V (on a second circuit). (And using a simple timer, not the remote.) Adding a storage tank would store heat more effectively than adding battery capacity, as discussed in other threads.

The cheap $60 'coolant circulating heaters' are just thermosyphons, which would take careful locating and still might not work as well. It takes several time$ that for a good circulating pump plus thermostatically-controlled coolant heater. I use the pump featured in the following heater kit for my EV conversion. http://www.evsource.com/tls_heaters.php
2012 i-SE "MR BEAN" 105,400 miles
2000 Mazda Miata EV, 78 kW, 17 kWh
1983 Grumman Kurbwatt EV,170 kW, 32 kWh
1983 Mazda RX-7 EV 43 kW 10 kWh
1971 "Karmann Eclectric" EV 240 kW 19 kWh
1965 Karmann Ghia Cabriolet

peterdambier
Posts: 284
Joined: Thu Oct 04, 2012 3:26 am
Location: Bergstrasse, Germany

Re: Instant Heat... so far

Wed Dec 11, 2013 12:39 am

I forgot our heater yesterday. It is a 2 kW fan and heater working from 230V DC. Temperature was 34 C or 94 F. Temperature outside was some 5 C or 41 F. Until my wife came and I had unplugged and stored our cables it lost a bit but it was a nice ride without heating and without feeling cold.

No doubt, our car and batteries do store some heat somewhere. On our ride home I used full heat to keep the windows unfogged. I did not take much energy from the battery. But this morning I noticed temperature outside has climbed to 7 C or 45 F as well. Maybe our fan did it?

Cheers
Peter and Karin
Peter and Karin Dambier, DL2FBA, www.piraten-fraktion-bergstrasse.de

gmarcucio
Posts: 91
Joined: Wed May 15, 2013 11:09 am
Location: Hagaman, New York

Re: Instant Heat... so far

Sat Dec 14, 2013 10:17 am

tonymil wrote:I'm in Albany and I get by with a heated vest, a warm coat and the seat heater until the car heater warms up. And I find that even in very cold weather the car heater warms up pretty quickly. Because of the vest and seat heater, I find I don't need to whole cabin warmed up to feel comfortable, as long as I feel warm air blowing on me I'm ok.

Tony


Tony, where did you purchase the heated vest?

Don
Site Moderator
Posts: 2882
Joined: Thu May 10, 2012 3:55 pm
Location: Biloxi MS

Re: Instant Heat... so far

Sun Dec 15, 2013 9:07 am

Lots of them on eBay. Motorcyclists have been using heated garments for years. I can understand the need for them with 50 or 60 mph of wind carrying away your body heat - Even the best, most expensive insulated clothing will not keep you warm under those conditions

But, inside a car with zero wind chill on your body, electrically heated clothing seems a bit of an overkill, IMO. A fairly inexpensive ski jacket should keep you toasty under those conditions. Now, a pair of electric socks would probably be a good investment

http://www.ebay.com/itm/Warm-Safe-12v-H ... c9&vxp=mtr

Keeping your toes warm is much harder than keeping your torso warm

Don
2012 iMiEV SE Premium, White
2012 iMiEV SE, White
2017 Chevy Volt Premier
2014 Ford Transit Connect XLT SWB wagon, 14,000 miles
1979 Honda CBX six into six

tonymil
Posts: 274
Joined: Mon Apr 16, 2012 6:50 am
Location: Latham, NY

Re: Instant Heat... so far

Mon Dec 16, 2013 9:44 am

gmarcucio wrote:Tony, where did you purchase the heated vest?


This is what I bought. I can't remember which internet site I bought it from but it cost about $100.

http://voltheat.com/product/torso-3v-heated-vest-liner/

My only complaint is that the battery doesn't have a meter to tell you how much charge you have left. I think the newer models may have that, the site is selling backup batteries with a meter.

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