Lahore winters make the geyser one of the most used appliances in the house. A geyser that is fitted in the wrong place, without a safety valve or without venting, is also one of the most dangerous. Good installation is about the pipework, valves, gas or power supply and air, not only mounting the tank.
Types of geyser and what installation involves
| Geyser type | What installation includes | Points to plan |
|---|---|---|
| Gas storage geyser | Base or wall mount, cold inlet, hot outlet, gas line and valve, flue/vent pipe to open air, safety and drain valves | Outdoor or well-ventilated location, flue route, SNGPL meter position |
| Electric storage geyser | Wall mount, cold inlet, hot outlet, dedicated power supply with proper earthing, safety valve | Wiring capacity, earthing, breaker |
| Instant (tankless) gas or electric | Compact wall mount close to the point of use, gas or power connection, venting for gas models | Water pressure needed to trigger it |
| Dual fuel (gas + electric) | Both connections above | Separate gas and electrical safety checks |
| Solar water heater | Roof panel/tube collector, tank, pipework, often a backup heater | Roof space, sun exposure, structure |
When you need it
- Fitting a geyser in a new house
- Replacing an old, rusting or leaking geyser
- Moving the geyser to a safer or closer location
- Switching from gas to electric, or adding an instant geyser for one bathroom
Step-by-step process
- Choose location. Gas geysers belong outdoors or in a well-ventilated area, never inside a closed bathroom or bedroom. Keep the run to bathrooms short to reduce heat loss.
- Check supply. For gas, confirm the gas line and pressure; for electric, confirm wiring and earthing with an electrician.
- Mount the unit on a firm, level base or a wall that can carry its full weight.
- Connect water. Cold inlet with a stop valve, hot outlet to the house lines, safety (pressure-relief) valve and a drain valve.
- Connect gas or power. Use a proper gas valve and checked joints; for electric, a dedicated breaker.
- Fit the flue for gas models so fumes go to open air.
- Fill before firing. Fill the tank with water before lighting or switching on.
- Leak-test water joints and gas joints (soapy water on gas joints, never a flame).
- Run and check temperature, thermostat and pilot or ignition.
Approvals and utilities in Lahore
There is no separate permit to fit a household geyser, but gas work connects to the SNGPL network. SNGPL has urged consumers to install good-quality, energy-efficient gas appliances and to prevent gas leaks (ProPakistani). For gas line changes on your side of the meter, use a plumber experienced with gas fitting.
What affects the cost
- Geyser type and capacity
- Distance from geyser to bathrooms and kitchen
- New gas line or electrical circuit needed
- Flue pipe length and wall or roof penetration
- Valves and fittings to be replaced
- Removal of the old geyser
Ask for a quote that lists labour and parts separately.
Questions to ask the plumber
- Where will you place the geyser, and how will it be vented?
- Will you fit a pressure-relief valve and a drain valve?
- How will you test the gas joints?
- Are the hot-water pipes rated for hot water?
- Will you remove and dispose of the old unit?
Red flags
- Installing a gas geyser inside a closed bathroom or room
- No flue, or a flue ending inside a shaft or covered area
- Skipping the safety valve
- Testing gas joints with a flame
- Electric geyser on a shared socket without earthing
FAQs
Can a gas geyser be installed inside the bathroom? It should not be. Gas geysers produce fumes, including carbon monoxide, and need open air or a properly vented location outside living spaces.
Gas or electric geyser: which is better for Lahore? It depends on gas availability, pressure in your area and electricity costs. Many houses use gas with an electric or instant backup. Ask the plumber to assess your supply.
How often should a geyser be serviced? Before each winter is a sensible routine: check the burner, thermostat, valves and flue, and drain sediment from the tank.
Do I need a separate plumber for gas and water? One experienced plumber can usually do both; confirm they regularly handle gas connections.