yes nwh don't forget the rules! I for one am yjust starting to read tommy's posts more easily now. good on you mr jackson, it can't be easy for you coming on here
gas is safe imo if you have a sense of smell in case there's a leak, and to answer ON TOPIC (wild I know!) ....
your trigger will be fine with a gas heater as long as you fit a thermostatic mixer valve.
I can't stress enough to everyone what a cracking piece of kit these things are!