heat for disabled son

[a1sportsphotography]

I have a disabled son and with the weather getting colder I have to look after him, 

In the past I have run emergency lighting, just in case, off a heavy duty diesel car battery, we have 2 spares.

The lights are low power 20w = 100w bulbs.

However I was thinking about emergency heating and bought a personal (and I have to say very good) Honewell 50w heater to place near him, the full spec is 220-240v 50-60Hz,  250w heater

Is it OK to run this from an inverter please, say 600w or 1500w.   I do have a problem

I have a 600w inverter but the alarm keeps going off ???????

Many thanks

 

[Lurch]

Do you mean the alarm on the inverter keeps going off?

 

[a1sportsphotography]

yes

Perhaps I am expecting too much from a heavy duty car battery and an inverter, but I have no idea what other small heaters there are.

 

[Lurch]

And you are running the heater and lights or just the heater when it goes off?

TBH I think the 600W on the inverter is probably a best case on a good day rating. I would consider using a 2-3kVA inverter rather than straining the existing one, or use one for the lighting and one for the heating.

 

[a1sportsphotography]

The lights are on one battery the heater on another, sorry it should read 250w heater NOT 50w

And you are running the heater and lights or just the heater when it goes off?

TBH I think the 600W on the inverter is probably a best case on a good day rating. I would consider using a 2-3kVA inverter rather than straining the existing one, or use one for the lighting and one for the heating.

But they are expensive surely, I am looking at £80  ones from Maplin electronics, Halfords etc

 

[Lurch]

But they are expensive

Well, yeah. Have you heard the saying buy cheap, buy twice?

I have a couple of cheap inverters, they struggle with anything really. There is a 150W one I have had for a while, it struggles to power anything at all. My expensive sine wave inverter (probably about 1kW IIRC, maybe a bit less) will power drills and grinders.

My point is, if you want to power heaters from inverters there isn't a cheap method, and a cheap 600W inverter is not the same as a decent 600W inverter. If you are using it reasonably constantly I would also ensure there is plenty of headroom.

 

[a1sportsphotography]

Well, yeah. Have you heard the saying buy cheap, buy twice?

I have a couple of cheap inverters, they struggle with anything really. There is a 150W one I have had for a while, it struggles to power anything at all. My expensive sine wave inverter (probably about 1kW IIRC, maybe a bit less) will power drills and grinders.

My point is, if you want to power heaters from inverters there isn't a cheap method, and a cheap 600W inverter is not the same as a decent 600W inverter. If you are using it reasonably constantly I would also ensure there is plenty of headroom.

so what prices are we looking at then and a link please

 

[apprentice87]

Ok..

Before you go wasting your money on inverters, you do realise that the heater will fully discharge the car battery in less than 4 hours??

You say 250W heater, yes?? well 250w/12v = 20.8 amps.. On a 70AH battery, this will give you 3.3 hours before the terminal voltage on the battery drops to about 1.8v per cell i think it is, so about 11v from the battery..

Is there no other way of supplying power.. Where are social services in all this???? have you had a good read of the Social Services and Well-being (Wales)Act 2014????

ALWAYS remember this,, social workers are compulsive liars and full of ****...

What lettuced have they given you/told you up to now???

john..

 

[Tony S]

Contact social services for “warm homes” assistance.

In a genuine case they are helpful.

 

[apprentice87]

That is a good idea!! Look up all the laws first though, you would not believe the lies social services will tell you. If it were me i would tape record them too....

You do realise that social services have a DUTY to assess any needs your son might have. They have a DUTY to assess your needs as a carer too. How old is you son??

john..

 

[a1sportsphotography]

I have been a single father of THREE disabled sons for 18 years when their mother left so i am well aware of the rights believe me, thanks anyway.

I just want a backup emergency heat in case of power cut.

So, would a 600w/1200w inverter be ok for 2-3 hours "just in case"

many thanks all

 

[Tony S]

I give up!

This is pure fantasy

 

[a1sportsphotography]

Most rude...........  to a genuine question

 

[Tony S]

Hello Essex

 

[a1sportsphotography]

Hello Essex

???????   are you a moron .......

 

[Tony S]

:Salute

 

[Evans Electric]

What just happened.? 

 

[Andy™]

electric heaters from a battery will not end well. it will not last very long and vehicle batteries are designed for lots of power for a short time, not constant power. after a few discharges they will be dead and need replaced.. battery capacity ratings are also based on a 20 hour discharge. less than that and it wont last as long. so 100ah running at 5a will give 20 hours (or there abouts), but the same 100ah battery running at 100a will give a lot less than 1 hour .

could always use storage heaters, keep them on all the time then if the power fails they will still be hot for a long time

 

[M107]

Cheaper than an inverter

http://www.ebay.co.uk/itm/like/262681042054?lpid=122&chn=ps&adgroupid=41088503464&rlsatarget=pla-259290728342&adtype=pla&poi=&googleloc=9046122&device=c&campaignid=672297739&crdt=0

 

[rapparee]

When the electric is off it's off no point messing about with car batteries and inverters. Have you not thought about getting a superser.

http://www.ebay.co.uk/itm/like/131917347016?lpid=122&chn=ps&adgroupid=41088503464&rlsatarget=pla-259290727382&adtype=pla&poi=&googleloc=9045188&device=m&campaignid=672297739&crdt=0&ul_ref=http%3A%2F%2Frover.ebay.com%2Frover%2F1%2F710-134428-41853-0%2F2%3Fmtid%3D1673%26kwid%3D1%26crlp%3D145774174939_563391%26itemid%3D131917347016%26targetid%3D259290727382%26device%3Dm%26mpre%3Dhttp%253a%252f%252fwww.ebay.co.uk%252fitm%252flike%252f131917347016%253flpid%253d122%2526chn%253Dps%26adtype%3Dpla%26googleloc%3D9045188%26poi%3D%26campaignid%3D672297739%26adgroupid%3D41088503464%26rlsatarget%3Dpla-259290727382%26gclid%3DCjwKEAiA6YDBBRDwtpTQnYzx5lASJAC57ObMo9XYZvjvNkQuU8c715dM7qgrrXFwO7PgwkX4M5-zjhoCbdXw_wcB%26srcrot%3D710-134428-41853-0%26rvr_id%3D1120501379928