Picture of Camping Storage Heater from Bricks, Sand and an Ammo Tin.
The UK is suffering from some pretty horrendous weather. Lots of snow in a country that is normally pretty temperate and bear in mind that people here lose the ability to drive if there is more than an inch of snow on the ground.

This coming weekend I shall be driving half way up the country to spend a long weekend in a field with 2000 other people who are just as stupid as me. (I shall also be testing out my Frontier Stove)

So I've decided that if I am indeed going to be sleeping under canvas, I'm going to be snug and warm doing so... And without either suffocating from carbon monoxide or turning my tent into a toasty conflagration. 

The solution I've come up with (aside from ludicrous amounts of bedding on my camp bed) is to make a storage heater.

The principle is simple enough. An object with a high thermal energy storage capacity is heated up... then when the heat source is removed it stays hot and radiating heat for quite some time.

Modern storage heaters tend to use ceramics... but in this project I shall be using house bricks and sand (to fill the gaps)

This Instructable involves very very hot items (such as fire, heated steel and brick). Do not place the storage heater anywhere it could do damage to people or property. I am not responsible for anyone being a muppet.
studs412 years ago
The best bricks to use are the ones out of an old storage heater. They have a very high heat capacity and are heated to 600+ degrees centigrade when in an insulated storage heater. You can get an old storage heater for as low as a £1 on ebay (because people dont want to strip and take them to the tip (they way a ton) and can have as many as 24 bricks. These bricks are also could for making solar barbeques and solar ovens.
Won't the paint burn on the box?
DIY-Guy2 years ago
In the first depression here in the states, people used rocks or bricks heated at the side of the fireplace to bring to bed with them. Or, a baked potato or two! The idea is even more ancient; glad to see it now has a neat rectangle and handle on it these days!
Chupp2 years ago
This is a cool idea. I can't wait to see how it turned out. I have been in similar situations wishing I had something to warm the tent a bit.
Thats a really good idea. Ill give it a shot on my next camping trip.
framistan2 years ago
I like your idea of heating your tent without using anything like fire inside the tent. I imagine this might be a bit TOO hot during the first hour or so.. then it might get cool too quick and your tent will again need the box re-heated. I wonder if the hot metal box could be placed inside an insulated box so the heat could be let out slowly. This would make the heat last longer, and not be a danger to touch during the 1st few minutes of heat. The only thing I can think of that will insulate the box is FIBERGLASS batting... or maybe placing it inside ANOTHER metal box. Might make the heat stay a few hours longer and more evenly heat during those hours, rather than SUPERHOT the 1st hour... then quickly cold again inside the tent.
Agreed. However, instead of constructing a second Fiberglass insulated box, perhaps you could wrap a section or two of Fiberglas batting around the hot box. This insulating "blanket" could then be unwrapped to expose more of the hot box.as needed, thus allowing for more complete control of the heat inside the tent AND eliminate the need to construct a second metal box. The "blanket" can be stuffed inside a plastic trash bag for storage - all in all, a lightweight and inexpensive way to moderate/control the heat...