What size generator would be needed to run home of 1800 square feet? What size for lighting only? min. rpm's (on generator)for each application? Torque required to started this generator? Torque required to keep it running?

Hi, I just want to know what are Group-A shares & Group-T shares and what we mean by that. On what basis this groupings are done

When I try to start my gen with electric self starter it hiccups. When I try it manually it back fires but starts after a few attempts. When I shut it off it stops with back fires. Some problem with timing I think but it does not have an adjuster as in motor bikes. Need help

I am haviing o positive blood group my husband is also having same o positive blood group. If we have same blood group any problem will arise during my pregnancy. I can have Healthy cchild after my birth. I want to know the correct answer for my question

We live in Dallas and are replacing 2 complete units with a 3 ton & 5 ton variable speed. I have received quotes on Trane XL16 & XL19. Also Amana ASX16 and Carrier Infinty 17. The prices vary from $14K to $20K. How do you really compare the various models. I have spent hours on internet trying...