refrigerant - the refrigerant number installers in Waterford argue about.
Two bids can look similar while assuming different refrigerant values; the cheaper one often specs down. Ask for the figure in writing and check it against the manufacturer datasheet before you sign.
Farronshoneen, Ballytruckle and Lismore Lawn: Year-round emergency plumbing demand in Waterford. Local housing mix shapes emergency plumbing specs here. Quotes via the plumberwaterfordcity network.