Every rule your project must meet, found for you.
Search Northern Ireland’s planning and building-control guidance, ask a question in plain English, or generate a project compliance checklist — every answer cited to the source.
Working to a specific project? Generate a compliance checklist →
Answers, with citations
Ask in plain English and get an answer that links to the exact source clause — never an unsourced guess.
Scoped to your council
Overlay a council's local development plan on the Northern Ireland-wide regulations and policy.
Project compliance checklist
Characterise a project and get the requirements that apply, grouped by work area. Try it →
The library
Search the source guidance
6 results · filtered
Domestic hot water distribution system temperature control
89(1)NI-wide·Technical Booklet P Sanitary Appliances Unvented Hot Water Storage and Scalding
The domestic hot water distribution system shall be so designed and installed as to incorporate measures to ensure that the temperature of water that can be delivered is not excessive.
dwellingscaldingFixed bath hot water temperature limit
89(2)NI-wide·Technical Booklet P Sanitary Appliances Unvented Hot Water Storage and Scalding
The hot water supply to any fixed bath shall be so designed and installed as to incorporate measures to ensure that the temperature of water that can be delivered to that bath does not exceed 48 oC.
dwellingscaldingDischarge pipes from tundishes - General requirements
2.14NI-wide·Technical Booklet P Sanitary Appliances Unvented Hot Water Storage and Scalding
A discharge pipe from a tundish should – (a) be made of – (i) metal; or (ii) other material that has been demonstrated to be capable of safely withstanding the temperatures of the water discharged and
drainagescaldingunvented-hot-water-storageHydraulic resistance calculation for discharge pipes
2.15NI-wide·Technical Booklet P Sanitary Appliances Unvented Hot Water Storage and Scalding
In calculating the hydraulic resistance of a discharge pipe the resistance of straight lengths, elbows and bends should be taken into account. If a discharge pipe is of copper its size should be calcu
drainagescaldingunvented-hot-water-storageVisibility of discharge from safety devices
2.16NI-wide·Technical Booklet P Sanitary Appliances Unvented Hot Water Storage and Scalding
The discharge from a safety device which may consist of scalding water and steam, should be visible at the tundish and should also be visible at the final point of discharge.
drainagescaldingunvented-hot-water-storageAcceptable discharge arrangements
2.17NI-wide·Technical Booklet P Sanitary Appliances Unvented Hot Water Storage and Scalding
Acceptable discharge arrangements include – (a) below a fixed louvred grating and above the water seal in a trapped gulley (see Diagram 2.1); or (b) downward discharge at low level but no less than 10
drainagescaldingunvented-hot-water-storageexternal-space