saunier duval ferma f23E with a twin pass heat exchanger, so no diverter valve, plate hex etc
however turn hot tap on, boiler fires, the water gets at best luke warm and the rads get hot
run heating till hot, turn tap and the water is a bit hotter but still short of piping hot
also what the heck is a 'reversing valve assembly'
however turn hot tap on, boiler fires, the water gets at best luke warm and the rads get hot
run heating till hot, turn tap and the water is a bit hotter but still short of piping hot
also what the heck is a 'reversing valve assembly'