No Heating

[diamond lil]

Thankyou - so what about a pump for 7 radiators off a multiburner stove? What kind of load does that take and how the hell do you get it into the pump? (clueless helpless female here!)

[TorNicho]

The pump power requirements will be on the pump (you may have to find it, I don't know where mine is), I can't see it requiring much more than 200W though.

One way to connect the inverter to the pump is as follows:-

[diamond lil]

Will show it to the husband ty xx

[gregpreston]

i have made a oil burner from an old 15 kg gas bottle i found dumped by the road side. i was careful to release all the pressure first although it was empty by unscrewing the tap as far as it would go by hand pressure only. theni put a small lenght of mig welding wire thru the hole in the tap to make sure the tap gate inside the tap was fully open and pushed the thin wire at least 8 inches in to the bottle to make sure the gas was completely all gone, then i drilled a small hole in the bottle using a continous stream of water to stop any heat or spark action. then i unscrewed the valve out and this made a chimney hole. then cut the bottle using an angle grinder and made a small hinged door so i could get access to the flame etc. the fuel is free and in abundance. used black engine oil filtered thru a pair of jeans with the legs tied at the ends to remove lumps and metal particles etc, this is maker beware warning wen u prepare the bottle wen cutting so make sure all gas is removed. i could use this 100% of the time but have decided to use it to heat my bug out room or a single room with access for a small chimney to let the fumes etc to escape. it throws out a good deal of heat as the whole surface area gets hot. i welded a small solid steel plate on the side and cook or heat a small pot on it. i have no written plans for this and made it up and improved it as i went along






















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5

[Steve C]

Inverter Power Consumption Tips:

Power(W) = Voltage(V) x Current(A) (Although Current is signified by I, for the purposes of this it will be A).
Voltage(V) = Power(W) / Current(A)
Current(A) = Power(W) / Voltage(V)

This is a very simple equation and you would do well to remember it.

Firstly, the I advise you get an inverter that will exceed your requirements, 100W bulb-150W inverter, 2kW kettle-2.5kW inverter. Mainly because appliances draw a startup surge greater than that of the continuous running.
(For the sake of ease in the examples, the inverter will be sufficent to power the required device)

Batteries output is usually measured in Amp Hours or Ah. The number on the battery is the total number of amps it can drive in 1 hour. 100Ah would be 100 Amps for 1 Hour, or 50 Amps for 2 Hours, or even 1 Amps for 100 Hours.
This will, however, completely drain (and kill) your battery. (there is loads on battery cycles and lives online).

So you want to power a 230 Volt, 100 Watt light bulb with your inverter and a 100Ah battery.

100W / 230V = 0.435A --- 100Ah / 0.435A = 229.89 Hours

So that would give you over 200 hours of light from the battery (if it is not recharged and you kill it)

So, powering a 230 Volt, 2 kilo Watt kettle with your inverter and a 100Ah battery.

2000W / 230V = 8.7A --- 100Ah / 8.7A = 11.5 Hours.

Remember: - Batteries are mearly energy storage, not a source. If you do not recharge them by the same amount you are drawing, they WILL run out and die.

Think you have got your sums a bit wrong, while you calculated 0.435A this is at 230 VAC and not 12VDC. You cannot create or destroy energy only convert it from one form to another. '100Ah / 0.435A = 229.89 Hours' this is actually at 12VDC therefore 0.435A x 12V = 5.22W and not the 100 you originally started with.

A quick and dirty way to work things out is just to work on the power consumption, for your 100W example at 12VDC you actually consume 8.35A (100|12). Draw 8.3A from a 100Ah battery and it is flat in 12 hours and not 229! For your 2000W it actually works out at 36 minutes rather than 11.5 hours

These figures are based on a 100% efficient inverter and a fully charged full capacity battery, if you assume a 80% efficient inverter you are down to 9.6 hours and 29 minutes respectivly.

[Plantiejo]

Things I have learnt about woodburners.
If you are planning to install a modern/new woodburner consider having a back box put on for the flu and choose one with a flat top. This means the whole of the flat surface of the top remains free to cook and heat water on. We regularly cook on ours now 'just because we can' and for practice. Use heavy bottomed pans as it really does get hot.
If you have the choice put one in the has a small back boiler too or the capacity to install one later.
This type of back boiler can heat water and move it to a tank (positioned correctly, by gravity using the hot waters property of wanting to rise) so no electric pump!
Woodburner - British made/local (to me!)
http://www.deanforge.co.uk/products/woo ... small-8kw/

We have also installed a 'Sheila's Maid' (to dry clothes on) above the woodburner. I have never used an electric clothes dryer.
Airer - Go for the biggest one you can fit in, as near to (above) the heat sources as you can.
http://www.amazon.co.uk/Super-Tradition ... 046&sr=8-2

[northern bloke]

I have a massive fresnel lens that I was thinking of using its focal point on a batch water heater outside the home plumbed onto a radiator in the home for free heating on fine days for an experiment I'm even thinking I can use it on a dutch oven for solar cooking.

The lenze was retrieved from a large rear projection TV shhh if everyone knew that they are there you might have to pay for it.

Here's a link to the power of the lenze

http://www.youtube.com/watch?v=wprlzCDfLm8

[poppypiesdad]

Lpg conversion burner for your existing boiler , yes if we have no mains the cost of other forms of heating will sky rocket . Guess they will need to repoen the coal mines that were closed

Jamie