Tools and reference

Online calculators

Convert refrigerant pressure to temperature NEW

Estimate effect of pipe insulation

Estimate combustion losses based on flue-gas measurements

U-value of simple layered structure. Define your structure by entering the material and thickness for each layer, inside to out. Includes condensation risk assessment.

Estimate steady-state heat loss from a building. Up to eight building element types (walls, windows, etc.) across five zone.

Downloads

Heatmap display tool

---

Free UK degree-day figures

Now available from the Energy Management Register web site. You need to join as a member (free of charge) to see them. Please visit www.EnManReg.org/freedd.

Download Energy management leaflet 7 (PDF format) for basic information about degree-day data and how to use them, or view frequently-asked questions.

---

Energy prices

Follow this link for UK Goverment quarterly energy price bulletins which includes comparisons of fuel prices in the EU and G7 countries

---

Going equipped

If you are doing your own energy surveys (or doing them for clients) have a look at the list of recommended equipment

---

Reference data

Physical constants, calorific values, units of measurement and other authoritative reference data are available free in the on-line version of Kaye & Laby 16th edition. (V.V. 27 Oct 05)

---

Conversion factors

Energy content of fuels typical conversions from metered units (eg litres of oil) to kWh. View short table. See also UK government spreadsheet with more extensive range of fuels, including estimated historical averages by industry for those fuels with variable properties.

Transport CO2 emission factors: UK government guidance

General-purpose

Neat units-conversion program: download free from joshmadison.com (V.V. 14/10/05)

---