Hot Water Boilers --------------------------------------------------------- How do I know what size boiler I need? add up all baseboard footage in the house usually total footage X 500 (btu/ft for most baseboard @180 F) will give btu's required (still need to reduce boiler size X.96 (efficiency) then x 4% for every 1000' above sea level (example 6200' altitude mult by .24)) --------------------------------------------------------------------- remember this - variable speed units are great for the environment but variable speed blowers are twice or more the cost of multi speed units and do not see much savings unless matched with AC ----------------------------------------------------------------------------------- Labor and additional parts extra Permits and local fees extra owners are responsible for electrical from panel to unit (we can suggest Liscenced electricians for you) Owner responcible for calling in and being present at local jurisdiction inspection <\p> <\pre>