Need more info what is the type of house single, slab on grade, basement, where is the water heater located ?
PS don't run the T/P valve drain to the condensate pump unit or to a sink or tub, if that thing ever opens when someone is in the tub or using the sink it will fry them and it will also melt the condensate unit.
PS don't run the T/P valve drain to the condensate pump unit or to a sink or tub, if that thing ever opens when someone is in the tub or using the sink it will fry them and it will also melt the condensate unit.