Arginase deficiency: This enzyme is involved in the final step of the urea cycle when arginine is cleaved to form urea and ornithine. Its deficiency results in argininemia, which is the least frequent of the urea cycle disorders. Hyperammonemia is not severe and the probable cause of neurotoxicity is arginine. The gene for this defect has been localized to chromosome band 6q23. Neonatal course is usually uneventful.
The cost for replacing a standard gas boiler is about $4,000. A high-efficiency model costs about $7,500. This cost estimate usually includes removal and disposal of the old unit, as well as all necessary lines, ducts and wiring needed for the new system to run properly.Replacing an oil-fired boiler is typically a bit more expensive.epending on where you live they cost between $50 and $300. Some local governments also require a fire inspection before heating system replacements. The fees for these are dependent on the size of the boiler and tend to run between $40 and $75.
Gas Boiler. Gas boilers are typically very large and used to heat large buildings rather than a home. Replacement costs of a gas boiler can range from $2,500 to $4,000 for a mid-efficiency boiler and $5,000 to $9,000 for a high-efficiency boiler making them significantly more expensive than a gas furnace.ingle stage, 80% efficient gas furnaces typically cost $2,000 or higher, moving up to a 90% efficiency range of this same type can cost $3,000. To move into the 95% efficiency range with a multi-stage or modulating furnace that feature variable speed blowers can cost $5,000 to $7,500.