HouseExhale

Working · 2.5 s

io.github.attachmentnerd/houseexhalev1.0.0

Explain bedroom CO2 readings, check certified HRV/ERV airflow, and find US installers and rebates.

Health & Science Local Services

Website Registry entry

Maintain this server? Claim it

Try it

Call this server's tools from your browser. Nothing to install.

https://houseexhale.com/mcp

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

Tool list from our last check. Connect live to refresh it.

check_ventilation_unit Read-only

Checks a quoted HRV or ERV against bedroom airflow needs using exact-model HVI-certified data. Returns a screening verdict, reasons, assumptions and questions for the installer. Ambiguous model names return candidates for clarification rather than a guessed model. Does not provide a permit-ready design or guarantee installation performance.

bedroomsarray, required

Every bedroom, with how many people sleep in each

zipstring

Five-digit ZIP code (used for the state if state is missing)

modelstring

The brand and model exactly as the quote prints it, e.g. "Broan-NuTone B160E75RS"

statestring

Two-letter US state, e.g. "CO"

unitIdstring

An id from a previous result’s candidates, once the person has said which exact model it is

quotedTypestring

Whether the quote calls it an HRV or an ERV, to catch a mismatch

floorAreaSqftnumber

Conditioned floor area in square feet, for the daytime code rate

Tools (5)

check_ventilation_unit

read-only

Argument	Type	Description
zip	string	Five-digit ZIP code (used for the state if state is missing)
model	string	The brand and model exactly as the quote prints it, e.g. "Broan-NuTone B160E75RS"
state	string	Two-letter US state, e.g. "CO"
unitId	string	An id from a previous result’s candidates, once the person has said which exact model it is
bedrooms*	array	Every bedroom, with how many people sleep in each
quotedType	string	Whether the quote calls it an HRV or an ERV, to catch a mismatch
floorAreaSqft	number	Conditioned floor area in square feet, for the daytime code rate

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "bedrooms"
  ],
  "properties": {
    "zip": {
      "type": "string",
      "pattern": "^\\d{5}$",
      "description": "Five-digit ZIP code (used for the state if state is missing)"
    },
    "model": {
      "type": "string",
      "maxLength": 120,
      "description": "The brand and model exactly as the quote prints it, e.g. \"Broan-NuTone B160E75RS\""
    },
    "state": {
      "type": "string",
      "maxLength": 2,
      "minLength": 2,
      "description": "Two-letter US state, e.g. \"CO\""
    },
    "unitId": {
      "type": "string",
      "maxLength": 80,
      "description": "An id from a previous result’s candidates, once the person has said which exact model it is"
    },
    "bedrooms": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "sleepers"
        ],
        "properties": {
          "name": {
            "type": "string",
            "maxLength": 40,
            "description": "What the household calls the room, e.g. \"Main bedroom\""
          },
          "sleepers": {
            "type": "integer",
            "maximum": 6,
            "minimum": 0,
            "description": "People who sleep there (a large dog counts about like a person)"
          }
        }
      },
      "maxItems": 8,
      "minItems": 1,
      "description": "Every bedroom, with how many people sleep in each"
    },
    "quotedType": {
      "enum": [
        "HRV",
        "ERV"
      ],
      "type": "string",
      "description": "Whether the quote calls it an HRV or an ERV, to catch a mismatch"
    },
    "floorAreaSqft": {
      "type": "number",
      "maximum": 20000,
      "minimum": 200,
      "description": "Conditioned floor area in square feet, for the daytime code rate"
    }
  }
}

explain_co2_reading

Explains a bedroom CO₂ reading against the precautionary 800 ppm average-while-asleep goal: band, distance from the goal, whether the measurement is comparable, signs of a monitor reading low, and free fixes with trade-offs. The goal is not a health limit. Door-open nights appear only as one-night tests, not fixes.

read-only

Argument	Type	Description
ppm*	number	The reading in parts per million
room	string	Where it was measured (default bedroom)
measured*	string	night_average: the average while asleep (a monitor’s recorded night). overnight_high: the highest number overnight (what most monitors show and people remember). spot: one reading at one moment. If unsure, use overnight_high for a morning number and spot for a daytime one.
sleepers	integer	People who slept in the room that night, if known

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "ppm",
    "measured"
  ],
  "properties": {
    "ppm": {
      "type": "number",
      "description": "The reading in parts per million"
    },
    "room": {
      "enum": [
        "bedroom",
        "other"
      ],
      "type": "string",
      "description": "Where it was measured (default bedroom)"
    },
    "measured": {
      "enum": [
        "night_average",
        "overnight_high",
        "spot"
      ],
      "type": "string",
      "description": "night_average: the average while asleep (a monitor’s recorded night). overnight_high: the highest number overnight (what most monitors show and people remember). spot: one reading at one moment. If unsure, use overnight_high for a morning number and spot for a daytime one."
    },
    "sleepers": {
      "type": "integer",
      "maximum": 6,
      "minimum": 0,
      "description": "People who slept in the room that night, if known"
    }
  }
}

find_installers

Lists HRV and ERV installer companies for a US ZIP code in HouseExhale’s neutral order, with its ordering rule and coverage limits. Returns member companies where the installer program is open, otherwise researched companies from public pages covering the Colorado Front Range and New England. Contains no sponsored cards or paid recommendations. Does not contact anyone.

read-only

Argument	Type	Description
job	array	Only if it applies: tight (just air sealed, insulated or newly built), no-ducts (no forced-air ducts), condo (condo or apartment), service (asking a past installer back)
zip*	string	The home’s five-digit ZIP code

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "zip"
  ],
  "properties": {
    "job": {
      "type": "array",
      "items": {
        "enum": [
          "tight",
          "no-ducts",
          "condo",
          "service"
        ],
        "type": "string"
      },
      "maxItems": 4,
      "description": "Only if it applies: tight (just air sealed, insulated or newly built), no-ducts (no forced-air ducts), condo (condo or apartment), service (asking a past installer back)"
    },
    "zip": {
      "type": "string",
      "pattern": "^\\d{5}$",
      "description": "The home’s five-digit ZIP code"
    }
  }
}

find_rebates

What HouseExhale’s research found for a state (by ZIP code or state): utility and state programs that pay toward an HRV or ERV by name, other ventilation rebates, air sealing and insulation help, the state’s federal home energy rebates, state tax credits, and the status of the federal tax credits. Each with its link and date. Never promises eligibility.

read-only

Argument	Type	Description
zip	string	Five-digit ZIP code
state	string	Two-letter US state, if no ZIP code

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "zip": {
      "type": "string",
      "pattern": "^\\d{5}$",
      "description": "Five-digit ZIP code"
    },
    "state": {
      "type": "string",
      "maxLength": 2,
      "minLength": 2,
      "description": "Two-letter US state, if no ZIP code"
    }
  }
}

units_to_ask_about

Lists up to three reviewed HRV/ERV families whose HVI-certified airflow covers what the household’s bedrooms need at night, with margin: units to ask installers about, never a single pick or a recommendation, and never paid placement. Also returns the night airflow target and how it was worked out.

read-only

Argument	Type	Description
zip	string	Five-digit ZIP code (used for the state if state is missing)
state	string	Two-letter US state, e.g. "CO"
bedrooms*	array	Every bedroom, with how many people sleep in each
floorAreaSqft	number	Conditioned floor area in square feet, for the daytime code rate

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "bedrooms"
  ],
  "properties": {
    "zip": {
      "type": "string",
      "pattern": "^\\d{5}$",
      "description": "Five-digit ZIP code (used for the state if state is missing)"
    },
    "state": {
      "type": "string",
      "maxLength": 2,
      "minLength": 2,
      "description": "Two-letter US state, e.g. \"CO\""
    },
    "bedrooms": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "sleepers"
        ],
        "properties": {
          "name": {
            "type": "string",
            "maxLength": 40,
            "description": "What the household calls the room, e.g. \"Main bedroom\""
          },
          "sleepers": {
            "type": "integer",
            "maximum": 6,
            "minimum": 0,
            "description": "People who sleep there (a large dog counts about like a person)"
          }
        }
      },
      "maxItems": 8,
      "minItems": 1,
      "description": "Every bedroom, with how many people sleep in each"
    },
    "floorAreaSqft": {
      "type": "number",
      "maximum": 20000,
      "minimum": 200,
      "description": "Conditioned floor area in square feet, for the daytime code rate"
    }
  }
}