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updating heating systems for innovation

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This commit is contained in:
Khalim Conn-Kowlessar 2025-08-18 12:55:44 +01:00
parent c3f8aaaca1
commit ab150c799d
2 changed files with 12 additions and 30 deletions
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23
recommendations/Costs.py
View file

@ -101,8 +101,6 @@ INSTALLER_ASHP_COSTS = [
{'capacity_kw': None, 'brand': '2 x cascaded ASHPs', 'tank_size_liters': 500, 'cost': 22950.00, 'installer': 'CEG'}
]
BOILER_UPGRADE_SCHEME_ASHP_VALUE = 7500
INSTALLER_SOLAR_BATTERY_COSTS = [
{'capacity_kwh': 5, 'description': 'Battery Add on', 'cost': 3769.89, 'installer': 'JJC'},
# {'capacity_kwh': 10, 'description': 'Battery Add on', 'cost': 4300.00, 'installer': 'CEG'},
@ -131,19 +129,10 @@ TTZC_ROOM_TEMPERATURE_SENSOR_LABOUR_HOURS = 0.17 # (Assume ~ 10 mins install pe
TTZC_SMART_RADIATOR_VALUES = 50
TTZC_SMART_RADIATOR_VALUES_LABOUR_HOURS = 0.37 # (Assume ~ 15-30 mins install per valve)
# Low carbon combi boiler - median value based on £2200 - £3000 range
LOW_CARBON_COMBI_BOILER = 2200
# boiler prices based on
# https://www.greenmatch.co.uk/boilers/30kw-boiler
# https://www.greenmatch.co.uk/boilers/35kw-boiler
# https://www.greenmatch.co.uk/boilers/40kw-boiler
# This is the cost of a firs time central heating install from The Warm Front rate card
# These are exclusive of installation costs
CONDENSING_BOILER_COSTS = {
"30kw": 1550,
"35kw": 1610,
"40kw": 1625
}
CONDENSING_BOILER_COST = 2600
# Electric boiler prices base on
# https://www.greenmatch.co.uk/boilers/combi-boilers/electric-combi-boilers
@ -155,10 +144,6 @@ ELECTRIC_BOILER_COSTS = 1800
ROOM_HEATER_REMOVAL_COST = 25
ROOM_HEATER_REMOVAL_LABOUR_HOURS = 3
# This is a cost quoted by Jim for a system flush - existig system will run more efficiently
SYSTEM_FLUSH_COST = 250
SINGLE_RADIATOR_COST = 150
DOUBLE_RADIATOR_COST = 300
FLUE_COST = 600
PIPEWORK_COST = 750 # Min cost is £500
@ -1102,7 +1087,7 @@ class Costs:
estimated_radiators = max(total_radiators_based_on_power, base_radiators + additional_radiators)
return round(estimated_radiators)
def boiler(self, size, exising_room_heaters, system_change, n_heated_rooms, n_rooms, is_electric=False):
def boiler(self, exising_room_heaters, system_change, n_heated_rooms, n_rooms, is_electric=False):
"""
Based on a basic estimate of median value £2600 to install a low carbon combi boiler
First time central heating vosts can als be found here:
@ -1111,7 +1096,7 @@ class Costs:
"""
if not is_electric:
unit_cost = CONDENSING_BOILER_COSTS[size]
unit_cost = CONDENSING_BOILER_COST
else:
unit_cost = ELECTRIC_BOILER_COSTS
# The unit cost is the cost without VAT

19
recommendations/HeatingRecommender.py
View file

@ -649,7 +649,8 @@ class HeatingRecommender:
"already_installed": already_installed,
"simulation_config": simulation_config,
"description_simulation": description_simulation,
**ashp_costs_with_controls
**ashp_costs_with_controls,
"innovation_rate": 0
}
ashp_recommendations.append(ashp_recommendation)
@ -1064,13 +1065,6 @@ class HeatingRecommender:
), {})
if has_inefficient_space_heating or has_inefficient_water:
boiler_size = self.estimate_boiler_size(
property_type=self.property.data["property-type"],
built_form=self.property.data["built-form"],
floor_area=self.property.floor_area,
floor_height=self.property.floor_height,
num_heated_rooms=self.property.data["number-heated-rooms"],
)
if self.dual_heating:
description = self.DUAL_HEATING_DESCRIPTIONS[
@ -1141,7 +1135,6 @@ class HeatingRecommender:
}
boiler_costs = self.costs.boiler(
size=f"{boiler_size}kw",
exising_room_heaters=exising_room_heaters,
system_change=system_change,
n_heated_rooms=self.property.data["number-heated-rooms"],
@ -1167,7 +1160,8 @@ class HeatingRecommender:
"description_simulation": description_simulation,
**boiler_costs,
"system_type": "boiler_upgrade",
"survey": non_invasive_recommendation.get("survey", None)
"survey": non_invasive_recommendation.get("survey", None),
"innovation_rate": 0,
}
# We recommend the heating controls
@ -1208,7 +1202,10 @@ class HeatingRecommender:
heating_controls_only=False,
system_change=True,
system_type="boiler_upgrade",
measure_type="boiler_upgrade",
heating_product={ # temp until we do another product database update
"type": "boiler_upgrade",
"innovation_rate": 0
}
)
combined_recommendations.extend(combined_recommendation)