Plumbing & HVAC
Heating, heat loss, sewage, septic, boilers
Subtopics
Heating
2 tools
House heat loss
1 tools
Water supply
2 tools
Sewage
1 tools
Septic & cesspit
1 tools
Water heater
1 tools
Water filtering
1 tools
Water floor heating
1 tools
Bathroom plan
1 tools
Gas equipment
1 tools
Solid fuel boiler & stove
1 tools
Air conditioning
1 tools
Heat recovery
1 tools
Boiler room piping
1 tools
Anti-freeze protection
1 tools
System pressure
1 tools
Plumbing acceptance
1 tools
Leaks
1 tools
Documents
1 tools
Plumbing glossary
1 tools
Calculators
Radiators
room heat loss → section count with temperature-regime correction
Boiler comparison
Gas, electricity, pellets, heat pump — cost of 1 kWh of heat at current fuel prices.
Heat loss
through the envelope (U×A×ΔT) → required boiler power
Water
Consumption norms and cost
Well pump
Well depth, distance to house, flow rate → pump head and accumulator size.
Sewage slope
Pipe diameter and length → code slope mm/m and total height drop.
Septic tank
volume by residents and water use, rings or pumping schedule
Boiler vs central DHW
kWh to heat water vs the DHW tariff
Water filtering
Pick a water treatment system by problem: iron, hardness, chlorine, sediment — filtration stages
Underfloor heating
Area, pipe spacing, loop length → meters of pipe and number of circuits.
Bathroom plan
Water, drain and electric points by bathroom zone with installation heights
Gas equipment
Placement norms for gas boiler, stove, meter and required documents
Chimney
Boiler power and height → chimney diameter, draft and duct requirements.
AC sizing
Area, ceiling height, sun exposure, people and appliances → required BTU and AC model.
Heat recovery
Airflow and temperature difference → saved kWh and payback of the recuperator.
Boiler room piping
Boiler room piping schemes: radiators, underfloor, DHW cylinder — node sequence
Freeze protection
Anti-freeze measures for pipes: heat cable, antifreeze, insulation — length estimates
Expansion tank
Coolant volume and temperature → expansion tank size and precharge pressure.
Plumbing acceptance
Plumbing works acceptance checklist: pressure test, joints, documents before payment
Leak response
Step-by-step response to a leak: water shutoff, documentation, who pays for damage.
Plumbing documents
Contract, estimate, acceptance act, warranty — what each document must contain
Plumbing glossary
Manifold, pressure test, hydraulic separator, vent stack — key terms in plain language