Ammonia is a normal constituent of all body fluids. At physiologic pH, it exists mainly as ammonium ion.
Compare the cost of the repair to the cost of replacing. A repair averages between $300 and $500 for most common issues. A replacement can cost between $3,000 and $5,000 for the new equipment installation, inspections and removing the old system.f you have a boiler installed or replaced, you might pay anywhere between $3,111 and $7,204. On average, homeowners tend to pay $5,100. These prices are highly dependent on the type of boiler you choose.
A combi boiler installation will cost on average Â£550. Obviously, costs do vary according to the different boiler models and whether you are replacing your radiators. Combi boilers prices vary from Â£650 to Â£2000, depending on the model you buy.he downside of replacing your old back boiler with a combination boiler is reliability. For all their mod cons, improvements in heating efficiency, combi boilers are not as reliable as the old the back boiler. The life span of the combi boiler is also less than the old back boiler.