Welcome to our Extra Large wood fired pool heater page! Here you will find pictures and information specific to our Extra Large size wood pool heater More pictures & info coming soon. Thank you for your patience Warm Water Solutions, Inc. Copyright © 2004-2007 Warmwatersolutions.com All rights reserved. Warm Water Solutions, Inc. Is owned and operated by Jason Shiffrar. We are the EXCLUSIVE distributor for "Extenda SwimTM" Wood Fired Pool Heaters. Corporate Headquarters: 5348 Vegas Drive, Las Vegas NV 89108. Factory/Distribution Location: 2202 South 8th St., Rogers, AR 72758.