Different thickness of the copper tube, and thickness and number per inch of the aluminum fins.
Its not hard to install.
Its not hard to install.
Gotcha. Ok that makes sense. When you say the thickness of the tube, you're not talking about 3/4" or 1", you're actually referring to the thickness of tube's wall, right? Someone at lowe's mention that to me trying to explain the difference between the L type and M type copper piping. (i think they are the types).Different thickness of the copper tube, and thickness and number per inch of the aluminum fins.
Its not hard to install.
Its not so much required as it is strongly urged. The thermostat is located at 1/4 of of the house. so that area may get warmer faster than the farthest side of the house. With that being said that farther side may not get as warm. Which right now its pretty freaking cold without heat. I literally keep the door closed to that side so the heat stays on the one side of the house. Talking 45-48 degrees in there. Initially installing this seamed easy until you mentioned things like i may need to install a separate pump and zone valve or i may have to install zone controller to provide prioritization of zones. See these things i dont know anything about. Installing everything and get having someone do the hookups at the boiler may be my best option. I'd hate to F up my boiler. Its a Bryant BW9 and its only 2 years old lol.If you require a separate zone just install separate supply and return piping all the way from the boiler and install a separate pump and zone valve which are energized when TT calls for heat. OR you could take a chance and just install the piping to the addition off the main circulating pump header. Might be a little cooler....won't know until you try it...you may also have to install zone control valve for existing in order to optimize zoning..also may have to install zone controller to provide prioritization of zones. May depend on size of boiler. Maybe you can work with your pro ..get instructions..do the grunt work and get them to set up controls etc.