Every page on this site
101 pages, grouped by section. Nothing here is more than two clicks from the homepage.
Last updated
The plain-text version of the whole site. If you are looking for something specific and the navigation is not helping, it is on this page.
Solar covers
What a solar cover really does to your water temperature, why the published figures range from 4 to 15 degrees, and which cover is worth buying.
- RoundupSolar pool covers worth buying
- RoundupSolar covers for inground pools
- RoundupSolar covers for above-ground pools
- RoundupSolar cover reels
- RoundupSolar cover reels for above-ground pools
- RoundupSolar sun rings
- RoundupLiquid solar covers
- RoundupWhich solar cover to buy for your pool size
- RoundupSolar cover reel covers
- RoundupSolar covers for kidney, oval and freeform pools
- GuideDo solar pool covers work?
- ComparisonThermal and insulated pool covers
- GuideHow a solar cover heats a pool
- GuideSolar cover: bubbles up or down?
- Comparison8, 12 or 16 mil: which solar cover thickness
- ComparisonClear vs blue solar covers
- GuideSolar cover on or off during the day?
- GuideWhat size solar cover do I need?
- ComparisonSolar cover vs winter cover
- GuideCan you use a tarp as a pool cover?
- ReviewSun2Solar solar cover review
- ReviewBlue Wave solar blanket review
- ReviewVEVOR solar pool cover review
- ReviewIntex solar pool cover review
- ReviewBestway solar pool cover review
- ReviewCover Free liquid solar blanket review
Pool heating
Solar, heat pump, gas or propane, priced per million BTU delivered into the water at current US energy prices. The numbers are not close.
- GuideHow to heat a pool
- RoundupSolar pool heaters
- RoundupWhich pool heater to buy
- RoundupHeaters for above-ground pools
- RoundupSolar heaters for above-ground pools
- RoundupPool heat pumps worth buying
- RoundupGas pool heaters worth buying
- RoundupPropane pool heaters
- RoundupHeat pumps for above-ground pools
- GuidePool heaters for saltwater pools
- RoundupSolar pool heating panels for inground pools
- GuideThe cheapest way to heat a pool
- GuideHeating a pool without a heater
- GuideHow to heat a pool fast
- GuideBuilding your own solar pool heater
- GuideWhat size pool heater do I need?
- GuideElectric pool heaters
- GuideHow to heat a pool with solar panels
- GuideWinterizing a pool heater
- GuideWhat heater fits an Intex or Bestway pool?
- GuideCan you heat a pool with a water heater?
- GuideDo you need a bypass valve on your pool heater?
- ComparisonHeat pump vs gas pool heater
- ComparisonSolar panels vs a heat pump
- ComparisonSolar cover vs pool heater
- ComparisonSolar panels vs a gas pool heater
- ComparisonGas vs electric pool heater
- ComparisonRaypak vs Hayward vs Pentair
- ComparisonPool heater brands, compared
- ComparisonInverter pool heat pumps
- ReviewIntex solar mat review
- ReviewRaypak pool heater review
- ReviewHayward Universal H-Series review
- ReviewPentair MasterTemp 400 review
- ReviewAquaCal HeatWave SuperQuiet review
- ReviewHayward HeatPro review
- ReviewFibroPool FH255 review
- ReviewTURBRO pool heat pump review
Cost to heat
Pool heating cost per degree, per month and per season, computed from current EIA fuel prices with the formula shown every time.
- The mathHow much does it cost to heat a pool?
- The mathHow long does it take to heat a pool?
- GuideWhat a pool heater really costs
- The mathWhat a pool heat pump costs to run
- The mathDoes a solar cover pay for itself?
- The mathWhat it costs to heat a pool in winter
- GuideIs a pool heater worth it?
- GuideThe most efficient pool heaters
- GuideHow long do pool heaters last?
- GuideReplacing a pool heater
Temperature
Target temperatures from DOE, how much heat a pool loses overnight and what that costs, and the practical ways to stretch the season.
Calculators
Heating time, running cost and cover savings, computed for your pool with the formula and assumptions printed alongside the answer.
- CalculatorPool heating time calculator
- CalculatorPool heater running cost calculator
- CalculatorSolar cover savings calculator
- CalculatorPool heater BTU calculator
About this site
How the numbers are worked out, who writes them, how the site is funded, and the legal pages.
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