# Ampworth calculators Muse connector

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## Ampworth calculators

UK solar PV and heat pump sizing calculators following MCS installation standards

- Record: https://musedirectory.ai/connector/ampworth-calculators
- Category: Developer Tools
- Developer: Ampworth (https://ampworth.com/developers)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 265ms, checked 2026-10-29T14:45:52Z
- Endpoint: https://ampworth.com/mcp/calculators
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-10-29T10:57:12Z)
- Source: Found in the official MCP Registry (com.ampworth/calculators) https://registry.modelcontextprotocol.io/v0/servers?search=com.ampworth%2Fcalculators

Open calculators for UK solar photovoltaic and air source heat pump installations. Includes system sizing, noise assessment, running costs, connection procedures, radiator sizing, and self-consumption estimates based on published MCS methods and British standards.

Example request: "Calculate what size heat pump a UK house needs based on its annual gas usage and current heating costs"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Ampworth calculators to help me. It is a free service with an MCP server at https://ampworth.com/mcp/calculators. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- connection_route: Work out which ENA connection procedure a domestic installation of solar panels, batteries or both falls under: connect first and notify the distribution network operator within 28 days, or apply and wait for approval before anything is connected. The rules are the ENA's engineer
- heat_pump_noise: Calculate the sound pressure level an air source heat pump produces at an assessment position, and whether it meets the 37 dB(A) permitted development noise limit, using the method in MCS 020. The formula is Lp = Lw + 10 log(Q / 4.pi.r^2) - Ab. Lw is the A-weighted sound POWER le
- heat_pump_running_cost: Compare what a household spends heating on its current fuel with what the same heat would cost from a heat pump. The heat demand is worked out from the household's own metered fuel use, not from a model, because a year of bills describes a particular house far better than any est
- heat_pump_size: Estimate the heat pump a UK house needs, and what it would cost to run against the fuel it burns now. IMPORTANT: MIS 3005-D requires a heat pump to be sized from a room-by-room heat loss calculation to BS EN 12831, and nothing here replaces that. Say so whenever you report a resu
- hot_water_cylinder: Work out the daily hot water demand of a dwelling and the size of cylinder a heat pump needs, using the formula in MIS 3005-D 3.5.2 and the BS 6700 guidance reproduced in MGD 007. The demand is 45 litres a day for each of N, where N is the greater of the number of bedrooms plus o
- list_calculators: Lists every calculator on this server, with the standard behind it and whether it is the whole-system sizing calculator or one of the single-method ones, plus the reference data a caller needs to build a valid request: the compass directions and their orientations, the shading de
- radiator_flow_temperature: Work out the flow temperature a heat pump must produce to heat a room through a given radiator, and the resulting MCS Heat Emitter Guide star rating, following section 4 of MGD 007. This is the calculation that decides whether a heat pump will be cheap or expensive to run. A heat
- room_heat_loss: Calculate the design heat loss of a single room in watts, following BS EN 12831 as MIS 3005-D applies it. This is the figure a heat pump is sized from and the figure the radiator in that room must be able to deliver. BS EN 12831 is a room-by-room method. Run this once for each he
- solar_pv_output: Estimate the annual AC electricity output of a UK solar photovoltaic system, in kWh, using the standard estimation method that MIS 3002 requires every MCS certified installer to use. The method is: annual output = kWp x Kk x SF, where Kk is read from the MCS irradiance dataset fo
- solar_pv_self_consumption: Estimate what proportion of a domestic solar PV system's annual output is consumed in the house and what proportion is exported, using the lookup tables in MGD 003. The tables are not a model. They come from half-hourly monitoring of real British households by Loughborough Univer
- solar_pv_shading: Convert a completed MCS sunpath shading assessment into a shade factor, using the procedure in MGD 005. The MCS sunpath chart is divided into 84 segments, each worth one per cent of the year's useful irradiance. An assessor stands at the middle of where the array will go, plots w
- solar_pv_system_size: Work out the solar PV system a UK home needs: the capacity in kWp, the number of panels, the battery to go with it, and what it would do to the electricity bill. This runs the MCS arithmetic backwards. The other solar calculators here each answer one question about a system someb

Screening checks:
- MCP handshake: pass (Answered in 363ms)
- Domain against threat feeds (Cloudflare security DNS): pass (ampworth.com not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (12 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (Domain registered 41 days ago)
- AI review of purpose and tool behavior: pass (No concerns)