<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body dir="auto"><div dir="auto">Hello,</div><div dir="auto"><br></div><div dir="auto">Can anybody help me out by advising how to control a gas water heater as a backup for a heat pump water heater. I could not find in the gas water heater window option to control its operation based on outside temperature for example.</div><div dir="auto"><br></div><div dir="auto">Any help will be highly appreciated </div><div dir="auto"><br></div><div dir="auto">Thanks all.</div><div dir="auto"><br></div><div dir="auto">Regards</div><div dir="auto"><br></div><div dir="auto">Ahmad</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div id="composer_signature" dir="auto"><div style="font-size:12px;color:#575757" dir="auto">Sent from my Galaxy</div></div><div dir="auto"><br></div></body></html>