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62 lines
2.2 KiB
Python
62 lines
2.2 KiB
Python
import pandas as pd
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from BaseUtility import Definitions
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from backend.Property import Property
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class FireplaceRecommendations(Definitions):
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"""
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For properties that have open fireplaces, we recommend sealing the fireplaces
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"""
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def __init__(
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self,
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property_instance: Property,
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materials: list,
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):
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self.property = property_instance
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self.has_ventilaion = None
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self.recommendation = None
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self.materials = [m for m in materials if m["type"] == "sealing_fireplace"]
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if len(self.materials) != 1:
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raise ValueError("Incorrect number of sealing fireplace materials specified")
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def recommend(self, phase=0):
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"""
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Based on the number of open fireplcaes found, we recommend sealing each one at a cost of
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around £500
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:return:
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"""
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number_open_fireplaces = int(self.property.data["number-open-fireplaces"])
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if number_open_fireplaces == 0:
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return
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material = self.materials[0]
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already_installed = "sealing_open_fireplace" in self.property.already_installed
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estimated_cost = number_open_fireplaces * material["total_cost"] if not already_installed else 0
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# We recommend installing two mechanical ventilation systems
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self.recommendation = [
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{
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"phase": phase,
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"parts": [material],
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"type": "sealing_open_fireplace",
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"measure_type": "sealing_open_fireplace",
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"description": "Seal %s open fireplaces" % str(number_open_fireplaces),
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"starting_u_value": None,
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"new_u_value": None,
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"sap_points": None,
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"already_installed": already_installed,
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"total": estimated_cost,
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# Take a very basic estimate of 6 hours, multipled by the number of open fireplaces to seal
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"labour_hours": 6 * number_open_fireplaces,
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"labour_days": 6 * number_open_fireplaces / 8, # Assume 8 hour day
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"description_simulation": {
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"number-open-fireplaces": 0
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},
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"innovation_rate": material["innovation_rate"],
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}
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]
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