Sitemap

Every page on this site

54 pages, grouped by section. Nothing here is more than two clicks from the homepage.

Last updated 2026-09-02

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.

Solar, heat pump, gas or propane, priced per million BTU delivered into the water at current US energy prices. The numbers are not close.

Pool heating cost per degree, per month and per season, computed from current EIA fuel prices with the formula shown every time.

Target temperatures from DOE, how much heat a pool loses overnight and what that costs, and the practical ways to stretch the season.

Heating time, running cost and cover savings, computed for your pool with the formula and assumptions printed alongside the answer.

How the numbers are worked out, who writes them, how the site is funded, and the legal pages.

Machine-readable

sitemap.xmlThe XML sitemap, with priorities set by commercial intent rather than path depth
feed.xmlAtom feed of the twenty most recent pages, excerpt only
llms.txtA summary of this site for language models, plus the long version