Honeywell AT72D-1683 Tradline Step Down Transformer, 120V/24V Eco_Friendly as an example with the

as an example with the appliance installed in the basement

For use with propane gas

Pulsating Massage

Hydronic (hot water) systems or heat pumps

If you don't have a metal door frame

Honeywell AT72D-1683 Tradline Step Down Transformer, 120V/24V Eco_Friendly as an example with theHoneywell 40 VA transformers power 24V systems including thermostats, gas valves and relays. Can be foot mounted, plate mounted on 4 x 4", 4" octagon, or 2 x 4" electrical boxes (transformer all above plate or 3 4 above plate); or clamp mounted via a junction box knockout. Override protection Color coded lead wires for primary connections Energy limiting and meets NEMA Standard DC20 1992 Transformers are marked NEMA Type D enclosure Meets NEC Class 2