Hi Mark Have you thought about using a fan heater? 1 to 2 kilowatts of fun for very few dollars.There are a few on trademe for cheap. -- Regards Keith Colson +64 9 478 6625 Next at Pitstock.com www.edns.co.nz 24 Coromandel Cres, Mairangi Bay, North Shore City 0630, Auckland