I bought this product for my Burnahm E420 Electric Boiler because the 4 White-Rodgers 24A54-2 sequencers are no longer made. This is actually a welcome change as I have had a lot of problems with failed White-Rodgers 24A54-2 sequencers over the years. It was challenging to install as the wiring schematic from Burnahm is difficult to read and not color coded. The only tools you will need for installation is a basic cross point screwdriver. If you take your time and carefully read and study the wiring schematic you should be able to install this yourself. No wire cutting. All parts/wires came included. You should also note new sequence of heating elements now come on #4, #3, #2 and then #1. This is normal with the new kit.