The Oil Firing Technical Association or OFTEC operate a competent persons scheme to certify installers. It’s always recommended to use an installer with this certification as it proves they have the training and expertise to properly install your boiler and give you realistic advice on the efficiency of your system. Also, OFTEC registered installers offer Workmanship Warranties to protect you if there are any problems after installation.
Dolgellau is a market town as well as area in Gwynedd, north-west Wales, resting on the River Wnion, a tributary of the River Mawddach. It is typically the county town of the historical area of Merionethshire (Welsh: Meirionnydd, Sir Feirionnydd), which lost its management condition when Gwynedd was developed in 1974. Dolgellau is the main base for climbers of Cadair Idris. Although very little, it is the second biggest negotiation in Southern Gwynedd after Tywyn. The neighborhood includes Penmaenpool. The name of the community is of unsure origin, although dôl is Welsh for "field" or "dale", as well as (y) gelli (soft anomaly of celli) suggests "grove" or "spinney", and also is common locally in names for farms in sheltered nooks. This would seem to be one of the most likely derivation, giving the translation "Grove Meadow". It has actually likewise been suggested that the name can stem from words cell, implying "cell", converting as a result as "Meadow of [monks'] cells", but this appears less likely taking into consideration the background of the name. The earliest recorded spelling (from 1253, in the Survey of Merioneth) is "Dolkelew", although a spelling "Dolgethley" dates from 1285. From after that up until the 19th century, many punctuations were along the lines of "Dôlgelly" "Dolgelley", "Dolgelly" or "Dolgelli" (Owain Glyndwr's scribe wrote "Dolguelli"). Thomas Pennant made use of the kind "Dolgelleu" in his Tours of Wales, as well as this was the form utilized in the Church Registers in 1723, although it never had much money. In 1825 the Registers had "Dolgellau", which create Robert Vaughan of Hengwrt adopted in 1836. While this kind might originate from a false etymology, it came to be typical in Welsh as well as is currently the common type in both Welsh and English. It was taken on as the official name by the neighborhood country district council in 1958. Shortly before the closure of the town's railway station it showed indications reading variously Dolgelly, Dolgelley and also Dolgellau.