{
  "version": "https://jsonfeed.org/version/1.1",
  "title": "Heat Pump Math",
  "home_page_url": "https://heatpumpmath.co.uk",
  "feed_url": "https://heatpumpmath.co.uk/feed.json",
  "description": "Free heat pump running cost calculator with plain-English guides to efficiency, sizing and electricity tariffs. UK-focused, independent.",
  "language": "en-GB",
  "items": [
    {
      "id": "https://heatpumpmath.co.uk/",
      "url": "https://heatpumpmath.co.uk/",
      "title": "Heat Pump Running Cost Calculator",
      "content_text": "Free UK heat pump running cost calculator. Enter your home details to estimate annual electricity costs based on SCOP, tariff and consumption.",
      "date_published": "2026-05-18",
      "date_modified": "2026-07-03"
    },
    {
      "id": "https://heatpumpmath.co.uk/what-is-scop",
      "url": "https://heatpumpmath.co.uk/what-is-scop",
      "title": "What is SCOP? (Heat Pump Efficiency Explained)",
      "content_text": "SCOP (Seasonal Coefficient of Performance) measures how efficiently a heat pump converts electricity into heat across a full UK heating season.",
      "date_published": "2026-05-12",
      "date_modified": "2026-07-03"
    },
    {
      "id": "https://heatpumpmath.co.uk/heat-pump-electricity-tariffs",
      "url": "https://heatpumpmath.co.uk/heat-pump-electricity-tariffs",
      "title": "Best Electricity Tariffs for Heat Pumps (UK)",
      "content_text": "Comparison of UK electricity tariffs designed for heat pumps, including Octopus Cosy and Economy 7, with Jul 2026 Ofgem price cap rates.",
      "date_published": "2026-05-12",
      "date_modified": "2026-07-03"
    },
    {
      "id": "https://heatpumpmath.co.uk/heat-pump-vs-gas-boiler-cost",
      "url": "https://heatpumpmath.co.uk/heat-pump-vs-gas-boiler-cost",
      "title": "Heat Pump vs Gas Boiler Running Costs (UK 2026)",
      "content_text": "Direct comparison of annual running costs for air source heat pumps vs gas boilers in UK homes, based on the Jul 2026 Ofgem price cap.",
      "date_published": "2026-05-12",
      "date_modified": "2026-07-03"
    },
    {
      "id": "https://heatpumpmath.co.uk/heat-pump-sizing",
      "url": "https://heatpumpmath.co.uk/heat-pump-sizing",
      "title": "How to Size a Heat Pump Correctly (UK Guide)",
      "content_text": "Guide to calculating the correct heat pump size (kW output) for UK homes. Oversizing wastes money and reduces efficiency.",
      "date_published": "2026-05-12",
      "date_modified": "2026-07-03"
    },
    {
      "id": "https://heatpumpmath.co.uk/factors-affecting-heat-pump-cost",
      "url": "https://heatpumpmath.co.uk/factors-affecting-heat-pump-cost",
      "title": "5 Factors That Affect Heat Pump Running Costs",
      "content_text": "The biggest variables that determine how much you'll pay to run an air source heat pump in the UK, from flow temperature to thermostat habits.",
      "date_published": "2026-05-12",
      "date_modified": "2026-07-03"
    },
    {
      "id": "https://heatpumpmath.co.uk/guides",
      "url": "https://heatpumpmath.co.uk/guides",
      "title": "Heat Pump Guides",
      "content_text": "Plain-English guides to heat pump efficiency, tariffs, sizing, and running costs in the UK.",
      "date_published": "2026-05-18",
      "date_modified": "2026-07-03"
    }
  ]
}