Worked examples for installation charges, copper piping, monthly electricity bills, star-rating payback, heat pumps and AMC, plus a buying checklist.
Once you know what type of unit you want, the next questions are arithmetic. How much will the installer add for extra copper pipe, an outdoor stand or core cutting? How many units (kWh) will a 1.5-ton AC add to your monthly bill, and which tariff slab will those units fall into? Does a 5-star model pay back its higher price over a 3-star, and how quickly does a heat-pump water heater recover its cost compared with an electric geyser?
The guides in this section answer those questions with worked examples. The numbers are illustrative: change them to your own room, city, tariff and quotation in the calculators. Tariffs are set by each State Electricity Regulatory Commission and differ between states and DISCOMs, so always check your own bill or your DISCOM's tariff order.
Begin with the total cost worked examples, then use the running cost estimator, the installation cost estimator and the buying and installation checklist.
Estimates, Running Costs and Checklists
A step-by-step method to decide between a 3-star and a 5-star AC in India using label units, your hours of use and your tariff slab, with three worked payback cases.
Estimates, Running Costs and Checklists
How AC annual maintenance contracts work in India, what comprehensive and non-comprehensive AMCs include and exclude, how to price one against pay-per-visit service.
Estimates, Running Costs and Checklists
A step-by-step checklist for buying a split or window AC or a geyser in India, preparing the wiring, supervising installation and keeping the records you need for warranty.
Estimates, Running Costs and Checklists
Calculate the units a 1, 1.5 or 2 ton AC adds to your bill and what they cost under telescopic slab tariffs, with illustrative examples and ways to cut them.
Estimates, Running Costs and Checklists
Step-by-step total cost of ownership for a split AC, a window AC, a storage geyser and a heat-pump water heater in an Indian home, with illustrative rupee arithmetic.
Estimates, Running Costs and Checklists
What a split or window AC installation bill in India includes, how extra copper pipe and other extras are charged, a worked estimate and how to check the bill.
Estimates, Running Costs and Checklists
How to calculate the units a storage or instant geyser uses each month, what standing loss adds, typical installation items and how to cut the winter bill.
Estimates, Running Costs and Checklists
How a heat-pump water heater compares with an electric geyser and solar heater on price and running cost in India, with COP-based payback examples for homes and guest houses.
