Heating, Plumbing & Electrics
367 sources in the library on heating, plumbing & electrics. Each one says what the document covers and what it is good for. Name a source to see which document it is and where to read it. One at a time. Page 10 of 10.
- supplier figure RN-2431PI
Twyford (Geberit)
Manufacturer catalogue data for a rimless floor standing washdown WC pan. Full flush volume is 6 / 4 litres in accordance with EN 997, and the pan is classified as EN 997 Type 2 with the flush rated as Type 1. Outlet is horizontal, the standard UK back outlet arrangement. Product material is vitreous china and pan dimension B is 35.5 cm. The pan uses Rimfree flush technology, meaning there is no enclosed rim cavity for limescale and bacteria to sit in. The cistern, seat and fastening material are ordered separately, which is the detail that catches people out when a pan is bought on price alone.
- supplier figure RN-9LKL9S
Vaillant
Manufacturer specification for the aroTHERM plus, available at 3.5, 5, 7, 10 and 12 kW. Quoted SCOP is up to 5.03. The unit uses the natural refrigerant R290 (propane) with a global warming potential of 3, reaching a flow temperature of up to 75C, which is what allows a like for like replacement onto existing radiators. Sound power is 51, 53 and 58 dB(A) across the casing sizes, and the sheet quotes a sound pressure level of less than 30 dB(A) at the stated planning distance. Product dimensions are 765 x 1100 x 450 mm for the smaller casing and 1565 x 1100 x 450 mm for the larger. Weight ready for operation is 114, 128 and 194 kg. Maximum rated current is 14.3, 15 and 23.3 A single phase, with 400V three phase available on the 10 and 12 kW only. IP rating is IP 15B. System operating pressure range is 0.5 to 2.5 bar. Refrigerant charge is 0.60, 0.90 and 1.30 kg, which matters because propane charge size drives the siting rules.
- supplier figure RN-4I0N63
Vaillant
Manufacturer technical sheet for the ecoTEC plus combi range (825, 832, 835, 838, 938). Nominal heat output range at 80/60C is 3.8-19.3 kW for the 825, 5.2-24.4 kW for the 832, 6.0-24.4 kW, 5.8-30.4 kW and 6.5-28.6 kW across the larger models; at 50/30C the ranges rise to 4.1-20.8 kW and 5.8-26.4 kW respectively. Domestic hot water flow rate at delta T 35K is 10.5, 13.0, 14.3 and 15.9 l/min across the range, dropping to 8.8, 10.9, 11.9 and 13.2 l/min at delta T 45K. ErP efficiency is 94 per cent. ErP sound power is 45-47 dBA. NOx is 29-55 mg/kWh depending on model. Boiler dimensions are 720 x 440 x 338 mm (HxWxD) and dry lift weight is 36-43 kg. Clearances required are 5mm to each side, 165mm above, 180mm below and 500mm to the front. A 10 year guarantee is available on registration with Vaillant Advance. Use the delta T 45K flow rate, not the headline 35K figure, when sizing a combi against a real shower.
- supplier figure RN-9YM2IO
Vent-Axia
Manufacturer datasheet for a decentralised mechanical extract fan, with the noise against airflow table an extractor fan choice actually turns on. The 100mm unit has variable speed settings of 5-30 l/s on trickle and 6-35 l/s on boost, with a minimum noise level of 13 dB(A) at 3 metres. The 125mm unit runs 9-30 l/s trickle and 10-35 l/s boost with a minimum 12.9 dB(A) at 3 metres. The full sound tables show the 100mm fan at 13, 14, 17, 24 and 41 dB(A) as flow rises from 6 to 8 to 13 l/s and up to maximum, and the 125mm at 12, 14, 17, 19 and 36 dB(A) at 9, 13 and 15 l/s and up, so noise rises steeply near the top of the range and a fan run at trickle is close to inaudible. Specific fan power is as low as 0.12 W per l/s. Airflow is set in 1 l/s increments. Vent-Axia notes the larger 125mm spigot places almost no restriction on duct length and bends compared with a traditional 100mm axial fan, so fewer fans are needed for whole house ventilation, and that it improves the Dwelling Emission Rate. Supplied with a 7 year guarantee.
- supplier figure RN-FB1C5B
Viessmann
Manufacturer brochure with the technical data table for the Vitodens 100-W. Heat output at 80/60C runs 2.9-10.1, 2.9-17.5, 2.9-23.0 and 2.9-29.3 kW across the four sizes; at 50/30C the same units give 3.2-11.0, 3.2-19.0, 3.2-25.0 and 3.2-32.0 kW. The 2.9 kW minimum is the notable figure, a wide modulation range for a small property. Domestic hot water flow at a 35C continuous rise is 10, 12 and 14 l/min, or 13.3, 15.6 and 17.0 l/min measured at a 30K rise under EN 13203-1, which is why two manufacturers' flow rates are not comparable unless the delta T matches. Rated output for DHW is 27.3, 31.7 and 34.9 kW. Case dimensions are 700mm high by 400mm wide by 360mm deep, weight 33 kg, with a 60mm flue gas connection and 100mm ventilation air connection and an 8 litre expansion vessel. The Vitodens 111-W adds a 46 litre stainless steel charging cylinder. Guarantee is 5 years, extending to 7 or 10 years when fitted by a Viessmann trained installer.
- supplier figure RN-U1GBHF
Worcester Bosch
Manufacturer one-page specification for the Greenstar 4000 combi. Central heating output modulates from 3 kW up to 24 kW. Hot water flow rate at the tap at 35C delta T is 10.2 l/min on the 25 kW model and 12.3 l/min on the 30 kW model, so the model number describes hot water power, not radiator power. Guarantee is up to 8 years when installed by an accredited installer. Servicing clearance is 20mm from a removable cupboard door and 600mm from a fixed surface. This is the source for the point that a 30 kW combi does not put 30 kW into the radiators.
- supplier figure RN-1J8I94
Worcester Bosch
Manufacturer professional page for the Greenstar 4000. Available at 25 kW and 30 kW outputs with hot water flow rates up to 12.3 l/min at 35C delta T. Modulates down to 3 kW central heating output, a 1:10 turndown ratio, which matters for short-cycling in a small well-insulated house. Quoted operating noise is 45 dB(A). Full flow rates are achieved from 1 bar mains pressure. Guarantee tiers of 7, 8 and 10 years are offered depending on installer accreditation and system protection.