We have purchased two martin heaters from FactoryPure…the customer service was awesome, confirmation of products in stock, shipping details and follow up…all updates, changes and communication were stellar. We moved into an off grid cabin in Montana, bought our first 11000 btu martin heater for my mother’s room…loved it, but our square footage, high ceilings and my 87 year old mother’s need for more heat…required a higher btu output..so we ordered the 20,000 unit and moved the 11,000 unit to our unfinished bathroom space…a real life saver….we had a wilderness address and had to coordinate shipping with the local lumber yard when delivery looked like it was unavailable…Factory pure service representatives helped us coordinate everything and they made sure that Martin Heating was informed about delivery issues…both products arrived as promised and we will order from Factory Pure again…they were so considerate and helpful!!