All Answers (8) 1  This is nice information from wikipedia visit. 2  I guess if you assume the DNA is at rest with an average rise of 3.4 A per base pair, then the length of chr1 would be 3.4A * 249*10^6, i.e. 847*10^6A, i.e. ~85 mm, or 8.5 cm.
Boiler sizing includes two things: 1  The heating and hot water capabilities of the boiler. 2  The physical size of your boiler and whether it will fit in the space you have it destined for.
Boilers are an energy efficient and environmentally friendly mode of heating. They work by cycling cold water through a series of heated pipes before distributing it throughout your home as either hot water or steam. Determining the cost of installing a boiler is complex and can be tough for homeowners to figure out.