ENVI electric wall mount plug in heaters...

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stoveliker

Minister of Fire
Nov 17, 2019
1,258
Eastern Long Island NY
Can't you put the $800 (already a quarter of a new system, apparently) towards a new furnace, and have the rest on a payment plan to your utility with payments added to your utility bill? That's a way you can do it in Knoxville TN.

The new furnace will be more efficient as long as the resistive heat doesn't kick in, saving you money.

Once resistive heat kicks in it's as efficient as the space heaters (same mode of heating) IF your ducts are insulated properly and don't leak.

So the seal and insulate your ducts and (ducts in your) attic. Seal your walls. That does not cost much.
 

begreen

Mooderator
Staff member
Nov 18, 2005
88,971
South Puget Sound, WA
I am going to guess that this is a 10-12 kW furnace in this sized mobile. What is the make and model of the electric furnace?

Has anyone investigated under the mobile to see if the plenum and ductwork is still intact and well insulated? Rodents love to tear into the insulation of these systems and the ducts that run across the underbelly of a mobile. They can make a real mess of it. If the ductwork insulation is gone or connections are leaky then that would definitely make the output anemic and the electric bills high.
 

stoveliker

Minister of Fire
Nov 17, 2019
1,258
Eastern Long Island NY
I am going to guess that this is a 10-12 kW furnace in this sized mobile. What is the make and model of the electric furnace?

Has anyone investigated under the mobile to see if the plenum and ductwork is still intact and well insulated? Rodents love to tear into the insulation of these systems and the ducts that run across the underbelly of a mobile. They can make a real mess of it. If the ductwork insulation is gone or connections are leaky then that would definitely make the output anemic and the electric bills high.

Hm, yes, not the attic but below the floor.
 

semipro

Minister of Fire
Jan 12, 2009
4,046
SW Virginia
I think the OP should consider installing 1 or 2 ductless mini-split heat pumps.
The cost is more upfront but they will pay for themselves very quickly.
Money spent on replacing an electric furnace would be a waste in comparison.
Money spent on space heaters will be a total waste for area heating especially after the plumbing is damaged due to freezing.
 

Don2222

Minister of Fire
Feb 1, 2010
8,807
Salem NH
Electric resistance heat is basically 100% efficient. Its sounds like the central unit you have now and what you are looking at buying are both electrical resistance units. You will spend a fair amount of money on the ENVI heaters and gain nothing when compared to running your central unit. You can achieve the same or better results with your current system by lowering the thermostat set temp since the amount of heat you're proposing won't likely warm your house to acceptable temps. Your money is better spent using your existing unit and sealing air leaks and insulating. Check this out to get a better idea of what many of us here are talking about.

If you must use plug-in electric heaters consider you should consider using an infrared unit and moving it around to wherever it is needed, pointed at a human. We do this in our bathroom in winter. We only use them when we are nearby, usually while standing in front of our sink. This is much like using your electric blanket. Heat the person, not the room.

Edit: 500 watts of resistance heat is 1706 BTU
According to the info at the link I shared above you need about 40,500 BTU total for your house based on your climate and average parameters. In other words, you'd need about 24 of the ENVI units to put out that much heat.

View attachment 280604
Good info there!
Sounds like a 40K BTU wood pellet stove could work very well there!!
I heat my entire house with one up here in NH and it is warm and cozy! :)
 

Kahud48

New Member
Jul 25, 2021
11
Bowling Green, KY,
Can't you put the $800 (already a quarter of a new system, apparently) towards a new furnace, and have the rest on a payment plan to your utility with payments added to your utility bill? That's a way you can do it in Knoxville TN.

The new furnace will be more efficient as long as the resistive heat doesn't kick in, saving you money.

Once resistive heat kicks in it's as efficient as the space heaters (same mode of heating) IF your ducts are insulated properly and don't leak.

So the seal and insulate your ducts and (ducts in your) attic. Seal your walls. That does not cost much.
I wish I could, the companies here do not set up on a payment plan (at least that was what the two I called told me), must be paid for upfront. Hiller wanted $7000 to install and the other one I call said could do for $2500. So you tell me if I should even trust either one of them.

I am pretty much done with the worry this is causing me, God will provide how ever way this goes, that I CAN trust in (can't say the same anymore for most the people out there I have come across here of late)
 

fbelec

Minister of Fire
Nov 23, 2005
3,027
Massachusetts
a little old but.... when we set up electric heat in someone house the formula is for 3 inch insulated walls square footage times 10. if you have 6 inch walls it is square footage times 7. regardless of your heater it is what it is. if a room takes 1000 watts to heat and it is cycling off and on every half hour but instead you run 500 watts the 500 watt heater will run 24/7 it will cost the same as the 1000 watt cycling on and off every half hour. i haven't looked up those heaters that you want to run but if they are like a few customers of mine have they are useless. they bought one because it said it would heat the apartment and when it didn't do it the bought another one and that didn't work and at the same time because they were running so much the bill was sky high. that's when they called me in to fix what they had.

i have used the oil filled radiator here and they are a nice unit. even on it's highest setting it will not even light up paper sitting on top of it but it will heat a normal sized room without a problem. they also go with a 600 watt setting which is low a 900 watt setting that is med and a 1500 watt setting which is high. on top of the thermostat that is built in. 4 of those might just squeak by on a cold night but if your trying to take out the chill at 50 degrees you can adjust the wattage down and not have a problem. the nice thing about these heaters is the most sound you here it the thermostat clicking on and off. like i say 4 on 900 watt setting sound do a mobile home because of the lower ceiling. and if it gets cold use 1500 watt setting. in the mobile homes i've been in the back bedroom should be on a separate circuit the livingroom should be separate both 15 amps (1800 watts) and the diningroom should be a separate 20 amp (2400watt) and the kitchen should have two 20 amp circuits on the counters.
 
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Kahud48

New Member
Jul 25, 2021
11
Bowling Green, KY,
a little old but.... when we set up electric heat in someone house the formula is for 3 inch insulated walls square footage times 10. if you have 6 inch walls it is square footage times 7. regardless of your heater it is what it is. if a room takes 1000 watts to heat and it is cycling off and on every half hour but instead you run 500 watts the 500 watt heater will run 24/7 it will cost the same as the 1000 watt cycling on and off every half hour. i haven't looked up those heaters that you want to run but if they are like a few customers of mine have they are useless. they bought one because it said it would heat the apartment and when it didn't do it the bought another one and that didn't work and at the same time because they were running so much the bill was sky high. that's when they called me in to fix what they had.

i have used the oil filled radiator here and they are a nice unit. even on it's highest setting it will not even light up paper sitting on top of it but it will heat a normal sized room without a problem. they also go with a 600 watt setting which is low a 900 watt setting that is med and a 1500 watt setting which is high. on top of the thermostat that is built in. 4 of those might just squeak by on a cold night but if your trying to take out the chill at 50 degrees you can adjust the wattage down and not have a problem. the nice thing about these heaters is the most sound you here it the thermostat clicking on and off. like i say 4 on 900 watt setting sound do a mobile home because of the lower ceiling. and if it gets cold use 1500 watt setting. in the mobile homes i've been in the back bedroom should be on a separate circuit the livingroom should be separate both 15 amps (1800 watts) and the diningroom should be a separate 20 amp (2400watt) and the kitchen should have two 20 amp circuits on the counters.
Thank you fbelec, think I will use these two I already bought, 1 in each bedroom, and 1 oil space heater in kitchen and 1 space oil heater in LR. For my 900 sq ft home, that should work. I can even close off a room or two if need be :)
 

blades

Minister of Fire
Nov 23, 2008
3,672
WI, Leroy
real problem when not using mobile home ducted furnace is freezing waterlines, as they are run next to the ducting. Make every effort to insure that your belly fabric and insulation under the home is completely intact. if it isn't you will be replacing water lines and depending on your place the sub floor as well. A lot of them used chip board(osb) or particle board for the sub flooring- if it gets wet it turns to mush - a real mess to replace and expensive to boot. I have personal experience with this. You might want to wrap the water lines with the heat tapes to be on the safe side. Also a pia. don't need to run all the time but if its going to be below freezing then turn them on- good insurance. In my 7 year tenure with a 80's vintage mobile home I ran into just about every problem possible. expensive education thanks to a divorce.( also an expensive education )
 

zrock

Minister of Fire
Dec 2, 2017
1,102
bc
Electric heaters should be on their own dedicated circuit they pull a lot of power and can easily heat up the plugs and wire even those infrared pull a lot of power feel your plugs at the end of the day and your cords. Seen way to many home fires due to electric plug in heaters.. You will use up your credit the first month trying to run that many electric heaters... You would be better off getting a loan and putting in a new furnace. With what you save the first year you would be able to pay out the loan... Look around for company's that sell manufactured homes as quite often people order them with a furnace and then have the furnace pulled and install a heat pump. Then usually sell the furnace for 1/4 the cost of new.. I did this for one of the older homes i reno'd and it cost me 2 hours labor for the guy to install the stack and hook up the gas. All done for under $1000. I talked to the people and they keep their house warm and pay about $50 a month in heat. Or you could buy a good used pellet stove and install it yourself and just pay for the inspection. Thats what i did and my heating is cheap and warmer than any furnace i would install...
 

Kahud48

New Member
Jul 25, 2021
11
Bowling Green, KY,
I have two Dilonghi heaters in my bird loft and I use them in winter when it gets real cold and I keep the temperature about 60 degrees just to make it comfortable and I keep the two of them on just at night time and it raises my electric bill about 100 dollars more.. They are nice heaters no blowing noise or fumes and they are clean burning as well all contained..They would be good for you..clancey
Agreed, am looking to add a couple of them to go along with my two Envi wall heaters, should do good for us with two small rooms closed off