No! Offcuts of treated, painted or any kind of timber with something added to it will release the moisture within and cause tarring in your new liner and stove.
An average cost for a full load of dry seasoned timber is £120. You can expect to go through 1 to 2 loads in a year depending on usage.
There are many places providing many different types of fuel. I can advise you of the ones I know about, though you might like to try out different suppliers and fuels.
A. Yes, it's surprisingly easy to have a self contained chimney flue fitted
During my initial survey, I can advise you on the different types of stove, their features, their heat output and different makes and models available. In the end though, it is entirely up to your own personal preference as I am not affiliated to any manufacturers and I don't receive any commisssions from them.
There are many types of boiler stoves that can run a few radiators upto 10.
Yes. Through the use of a Thermal Store you can have many different types of heating all working together. Solar when it's sunny, the stove when it's in use and a gas or oil as a back up. You can even add ground source heating or heat recovery systems.
By all means, and I can come and fit it for you... but. I feel that using local showrooms makes far more economical and environmental sense. You get what you pay for and I for one would always want to physically see and touch what I'm buying, especially with such an investment for my home. You will also have a point of sale to return to if there are any problems with the order.
A standard install where no work is required to the fireplace and you have an existing flue may cost around £1000. Building work to the fireplace eg. opening it up etc. and no existing chimney/flue will raise the cost accordingly.