This has next to nothing to do with audio but is electronics related. We have a wood fired boiler in our basement that has saved us a ton of $$ on oil over the last 4 years. It's very easy to operate and I have no complaints expect this...if the boiler is re-started after a short period of time(less than 15 minutes) from the last time it shut off the gasses in the firebox will "explode". I don't see where any damage is caused by this event but I want to avoid it. I need to find something that will prevent the boiler from re-starting within 15 minutes from the last time it shut down. Once that time period has passed I want to be able to start the boiler again(if needed) and once it shuts down again I want it to go into "pause" for the 15 minute time period again. I don't want to spend a lot of $$ on this that could be otherwise used to buy more tunes!