Gas on to heat car - does it defeat the purpose

There are several more posts from the OP. Given the general response to questions like that here, I think they showed remarkable patience before giving up on you.

 

We need everybody with different perspectives.

The feud of the fuel for heating should not result in blocking each other's post. We should agree to disagree and move on.

I suggest Michael33's housemate come post here directly, instead of him brokering and posting 2nd hand info/data here.

 

Michael33's housemate has no interested in posting - something about 'people on the Internet are horrible'. I have no idea why she thinks that! And my information isn't second hand - I do drive the car on occasion, as it is our station wagon. Now, to update that filter...

 

Sadly, there are no repercussions for bad behavior on the internet. (Despite everyone's desire for an 'electrocute via TCP/IP' command, it has never been implemented)

PriusChat has real focus on being helpful and finding solutions, and so has a more friendly vibe to it. If you drift into any of the advocacy threads you will see the dark side. Technical threads can also punish misinformation harshly.

 

From your data I gather that this trip to the vet is not 'all EV' in the summer as well, so 'heat from a third source' will not help here to achieve 'all EV' or MPG boost, will it?
My question is: if you are so keen on all EV, why not making this trip to the vet with your LEAF (all year round)?

 

No, running a separate heater in Summer will not boost Summer MPG. It would, however, boost MPG in Winter by eliminating the ICE warmup runtime associated with heating the car before leaving, which is rather obvious, at least to me. You don't carry sick cats in a frigid car, or at least we don't. As for why we didn't use the Leaf, that was my housemate's choice, not mine. It would have been difficult, at best, to fit the carriers in the Leaf. I'm not going to respond to hostile posts like this ("if you are so keen on all EV") in the future, as they are not relevant to what is supposed to be the topic here.

 

I think this is your main problem. You've now attacked several people on this thread that didn't have any attitude or malice in their posts. Maybe it's you who are the one that needs the attitude adjustment.

 

Well, it is not obvious, at least not to me. If the ICE is needed during a trip - you will have 'warmup runtime' anyways, so why not using it at the beginning and have heat. Cannot see how you are boosting MPG by separate heater if the ICE will fire anyway down the road.
As for being hostile, this was not my intention. Keeness to me is the quality of being eager or enthusiastic and you have expressed your eagerness for 'all EV drive' all over through this thread and it is the topic.
Am I filtered now?

 

Posters here are passionate, which is a good thing. Some are bias toward EV but I think most PiP owners are balanced on either fuels.

Like I said before, for me, PiP uses:

- Electricity for short frequent trips
- Gas for longer trips
- Electricity for AC
- Gas for heat
- Both fuels under extreme conditions. They work together in synergy so, max efficiency can be realized under most common conditions.

PiP was designed to use the most suitable fuel (or combination) depending on driving condition (not range).

If you are EV bias, PiP may not be for you. At least, you should understand it and respect those that enjoys synergy of both fuels.

 

i love my ev miles and ratio. i also love the hv when i go beyond ev range. but i would love a larger battery in the gen IV and some type of non ice heat, for ev range trips in the cold. but i'm not ready to make the leap to pure ev and need for two vehicles or a rental at times. for people who do a lot of longer trips pip is a great solution for best mpg's, but for me, ev-ing around town is a thrill iwant more of!

 

No, you aren't. Was that what you wanted? Anyway, running the ICE with the car not moving will certainly lower MPG. In this example, which you cited, the ICE had to run before we left, to warm the cabin up enough. Had we not had sick animals, we would have warmed it for no more than one minute, just to let the engine parts expand. If the car had a preheater or a battery-electric heater, that (the extra warmup time) would have been unnecessary.

 

You'll still use electricity to preheat and the car isn't moving therefore lowering MPGe.

What is your point? Using electricity to preheat is okay but not with gas?

Since you have Leaf, how many kWh does it take to preheat it to reach the same cabin temp?

 

Yep, heat does not come out of no where. Either by gas or by electric, I don't have a problem with either energy source.

What's important to me is warmth in the winter, cool in the summer.

I love my Prius!

DBCassidy

 

Yup, considering majority of power generated come from coal or natural gas, both fossil fuel. Heat lost in the power plant does not get into the car cabin as heat.

Gas engine and exhaust heat gets recycled into Prius cabin while the power propel the car or charge battery. I think it is commom sense but some people just want to use electricity for everything.

I understand if you live near waterfall or windfarms but that's 1 or 2% of all electricity generated in the US and that can be used for other things not just plugin cars.

 

7F outside. You bet the ICE was running.

 

110 miles was the total for yesterday's running around in the extreme cold. From 2 charges, it delivered 55 MPG.

 

Rats, and here I was about to espouse my non electric/gas method for more heat. It involved a fresnel lens and a black can of oil.

Oh well, I'll just go start another wood fire in my wood stove in my garage so it won't be too cold to get in my PiP.


iPad ? HD

 

My driving results were skewed somewhat. It was the first day of the second half of winter. I started the cold season with the bottom grille blocked entirely The top was open entirely, until yesterday... which I switched to 50% blocked.

The real-world results were compelling right away. To my surprise, there was a quite noticeable improvement in heat retention. I had thought it would be modest. But driving alone in EV with the heater still pulling warmth from the coolant, I could easily tell it was lasting longer.

I also got an opportunity to try the "wait" test. After leaving the highway, with the engine toasty warm, there was a 1/2 mile drive that brought to a restaurant. I arrived really early. So, I turned down the heater temp to 65 and the fan down to the slowest setting, then sat there. The coolant temp dropped from 188°F to 123°F. I was kept warm for 14 minutes before the engine started.

 

Does it matter which half of the top grille gets blocked?

 

Running ICE beats frostbite or hypothermia any day of the week.

Stay warm my friend.

DBCassidy