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Cylinder and Solar development labs, Portadown Heat Pump development labs, Dunleer Heat Pump climate test chamber, Dunleer Heat Pump & Cylinder manufacturing, Portadown and Newry Heat Pump manufacturing Stainless steel heat pump / solar cylinder manufacturing Installer training New product development
• Heating via air or ground
Source heat pump
• Low temperature Smartrad
heat emitters
• Unvented hot water /
thermal energy storage
• Hot water from a
combination of solar
thermal and heat pump
• Ventilation efficiency via
MVHR
• Electrical consumption
offset by solar pv
Dimplex Zero Carbon Technologies Home
SIH ME 4/6kW
SIH ME 9/11kW
SI ME 14kW SIK ME 11/16kW
SI TE 21 - 130kW
SI TEH 20 & 40kW
LA MI 6/9kW LA MAS 9/11/16kW
LA MI 12/16kW
LA TU 9-60kW
A Class 12 / 16kW
Social Housing New/Refurb
Private Domestic / Self Build / New / Refurb
Commercial / Residential / Leisure Multi-occupancy domestic (communal)
Range of 5 models:
• 12kW – Single fan
• 16kW – Single fan
• 8kW – Single fan
• 6kW – Single fan
• 4kW – Single fan
• All monobloc
• Brand new development
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• Nominal outputs 9kW, 11kW, 16kW, single phase
• UK manufactured • Competitively price positioned • Improvement in performance • Reduction in noise emissions – owls wing fan from LA TU
range and electronically controlled fan (9kW)
• WPM heat pump manager • Weather compensated flow temperature
• Mono valent or Bi valent operation
• Opportunity • Available stand alone or as packaged option
• MCS approved
Dimplex Domestic Air Source Heat Pumps
Typical CoP (A7/W35): 3.9 Typical CoP (A2/W35): 3.4
LA MS range
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• Nominal outputs 8 and 14kW, single phase
• Maximum 65C water flow temperature, even at low outside temp
• R290 refrigerant – very low GWP
• Deflector hoods minimise sound emissions
• Required also for hot gas defrosting
• WPM heat pump manager
• Opportunity • Available stand alone or as packaged option
• MCS approval pending
Dimplex Domestic Air Source Heat Pumps
Typical CoP (A7/W35): 3.6 Typical CoP (A2/W35): 3.1
LA PMS range
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• Single phase, high temperature
• Nominal outputs 4kW 6kW, 9kW, 11kW
• WPM heat pump manager
• Variable flow temperatures up to 70ºC
• Allows 60ºC domestic hot water with heat pump operation only
• no supplementary immersion needed)
• Weather compensated flow temperature
• Increases annual efficiency
• Higher comparable CoP’s than standard range
• SAP Appendix Q registered (6/9kW)
Dimplex Domestic Ground Source Heat Pumps
Seasonal SPF* (ufh + DHW): 4.1
Seasonal SPF* (radiators + DHW): 3.0
*calculated to EN15316
SIH ME range
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• Nominal outputs – single compressor: 17kW, 21kW, 3 phase
• Nominal outputs – twin compressor: 24kW, 30kW, 37kW, 50kW, 75kW, 100kW, 130kW
• Nominal outputs – high temperature models: 20kW, 40kW
• WPM heat pump manager • Weather compensated flow temperature
• Mono valent or bivalent operation
Dimplex Commercial Ground Source Heat Pumps
Typical CoP (B0/W35): 4.2 – 4.6
SI TEH range
RHI Eligible!
Heat Pump Packages
Heat pumps Cylinders Hydraulic Accessories
Hydraulic Pack 1 ACCHYPK (HTG + DHW)
Hydraulic Pack 2 ACSSHYPK (HTG only)
Individual Components
MIC2013WM Water module (OEM
cylinder)
Long term strategic role for heat pumps
• The 4th carbon budget ascribes a prominent long-term role for heat
pumps in achieving binding domestic emissions reductions
“The Government is committed to expanding the Renewable Heat Incentive to the residential sector and delivering a long term scheme to this effect”
DECC 4th Carbon Budget Progress Report, Oct 2012
“The Government has also consulted on Renewable Heat Incentive tariffs for domestic buildings, with a commitment that this will support all eligible installations since July 2009. The Government expects to publish details of tariff levels and eligibility this summer” DECC “The Future of Heating, Meeting the Challenge” March 2013
Domestic Air Source Heat Pump Market – Summary by Sector
TOTAL ASHP MARKET – SPLIT BY SECTOR
2011 2012/13 2013/14 2014/15 Typical Heat
Pumps
New build 6000 6000 6000 6000 4kW, 6kW
Social Hsg 2900 6100 10000 15000 6kW, 8kW
Private Domestic retro 3100 4900 9000 13000 8kW, 12kW, 16kW
Total 12000 17000 25000 34000
New build: Requirement mainly for smaller units (4/6kW) due to low heating loads in new properties. Market growth limited due to slow housing market, unhelpful SAP treatment of heat pumps and builders seeking lower cost solutions
Social housing: Requirement mainly for small and medium size units (6/8kW). Will be a key sector for volume installations, RHI driving uptake in off gas areas
Private sector retro-fit: Requirement mainly for larger units (12/16kW). Oil boiler replacement becomes mainstream as oil prices increase and RHI helps cover marginal costs
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• Building Regulations Part L • Affects all new buildings • Carbon Dioxide emissions based • “Zero Carbon” for commercial buildings by 2019
• BREEAM Assessment • Overall building sustainability rating • Energy savings above and beyond Part L • Best practice in sustainable building design
• Policy drivers • Local authority planning policies - “Merton Rule”
• Financial incentives • Renewable Heat Incentive • Enhanced Capital Allowances • Carbon targets/tax
• Increasing energy prices • Particularly in off gas areas
Heat Pump Market Drivers
Renewable Heat Premium Payment
• Contribution uplifts expected
• ASHP: £1300
• GSHP: £2400
• Solar Thermal: £600
• Require an EPC to be completed
• indication of planned RHI eligibility
criteria?
• Stopped short of automatic
grandfathering
ASHP £1300
GSHP £2300
Solar Thermal £600
Domestic RHI – Rewarding Higher
Efficiency Systems
1. RHI deemed, based on Renewable Heat
contribution
2. Renewable Heat contribution calculated
using rdSAP
• EPC / Green Deal assessment
• Lower kWh/yr
3. Deeming SPF
• based on Heat Emitter Guide
• rdSAP product database (SAP Q)?
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Co-efficient of Performance
• CoP affected by:
• Heat source temperature
• Heating water temperature (flow/return temperatures)
• Additional supplementary heating
• CoP continually varies
• A spot measure of performance at optimal conditions
• Much like car mpg figures
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Space and Water Heating
• Heat pumps can provide both space heating and domestic hot water
– 35-55ºC water temperature
Radiators
• Sub-optimal flow temperatures required, i.e. 55ºC or above
• Compromises heat pump efficiency
– SAP correction factor
• Need to be oversized for use with heat pumps
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Space and Water Heating
Underfloor heating
• Underfloor heating is traditionally considered to compliment heat pumps well
– Lower temperatures required
– Larger surface area, typically 35 – 40ºC
– Helps heat pump run more efficiently
• SAP benefit
– Screed can act as thermal store
• Not always cost effective or practical
• Slow to respond due to high thermal mass
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Radiators that work with heat pumps
• Wall mounted, intelligently controlled, fan convector
heaters • Easily and cost effectively installed in new or existing
buildings
• Designed for low water flow temperature
• Optimises heat pump CoP
• Reduces heat pump running costs and CO2 emissions
• Ultra low water content
• Low thermal mass means fast response
• Controllable
• Individual room time / temperature control
• Space saving
• > 3 x output per metre of length than conventional radiator
• Does not require over sizing
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Smartrad Range
• Range of 4 outputs: • SRX080: 0.8kW
• SRX120: 1.2kW
• SRX140: 1.4kW
• SRX180: 1.8kW
• Rated at 45 C flow temp,
fan speed 2
• Technical manual gives full
output range at varying flow
temperatures
• Choice of White Metal,
White Glass or Black Glass
finishes
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Heat Emitter Guide for Domestic Heat Pumps
• Guide produced by industry
trade associations and DECC
• Aims to help appropriate emitter
selection for heat pumps
• EST field trial highlighted
appropriate emitter selection and
flow temperatures as a major
issue
• Uses a Star Rating to indicate
efficiency, encouraging lower
flow temps
• Highlights fan assisted radiators
as a particularly effective and
flexible solution
Guidance Table
30 to 50
50 to 80
80 to 100
100 to 120
120 to 150
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Guide produced by
industry trade
associations and DECC
Aims to help appropriate
emitter selection for heat
pumps
EST field trial highlighted
appropriate emitter
selection and flow
temperatures as a major
issue
Uses a Star Rating to
indicate efficiency,
encouraging lower flow
temps
Highlights fan assisted
radiators as a particularly
effective and flexible
solution
Solar Thermal Systems
General Overview
• Solar Thermal uses renewable energy from the
sun to produce heat
• Solar panels produce energy from daylight
• Not specifically direct sunlight
• Means hot water can be produced even in cloudy
weather
• The most common applications are:
• Domestic hot water
• Swimming pool heating
The basics
Solar Thermal Systems
General Overview
1. Solar Thermal collector absorbs solar irradiation and converts into heat energy
2. Heat energy is removed by a heat transfer fluid (water/antifreeze)
3. Heat transfer fluid circulated by a small pump
4. Heat energy stored in a domestic hot water cylinder
5. A back up heat source is required for days when light levels are limited
• Boiler, electric immersion, heat pump
1
2
3
4
5
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Technology – Flat Plate Collectors
• The most widely used collector type in Europe
• Over 90% market share
• Ideal for domestic hot water heating or swimming pools
• Can be mounted on roof or integrated into roof covering
• May also be mounted on flat roofs
• Portrait of Landscape orientation
• Multiple panels can be connected together in series
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Dimplex complete solar thermal packages
• Everything needed in one easy to
select package: 1
2
Solar collectors and roof fixings
Hydraulic package
Pump station (pump, non return valve, air bleed valve, fill/drain valve)
Controller
Heat transfer fluid
Expansion vessel
Cylinder
1
2
3
3
Target market
• RHI will drive opportunities
for larger, off gas grid
properties
• Private domestic retro fit
• Oil or lpg heated
– High fuel bills, bulk fuel
purchases
• Higher heat loads
– “100% sizing” rule above 11kW
• Existing heat distribution
systems
– Higher flow temperatures
Our model house
• 4 bedroom detached property
• 5 occupants
• 156m2 total floor area
• Circa 1920’s age
• Green Deal upgrades
– Cavity wall insulation
– 200mm loft insulation
– Double glazed
• 10.9kW heat loss at -3.4 C
• Heating via radiators (50 C)
• Equates to 70W/m2
• 26000kWh/yr space heating,
4300kWh/yr water heating
Will need a new graph to illustrate this point
RHI flow chart
Step Method Example
Heat loss calculation EN12831 / MIS3005 10.9kW
Select heat pump MIS3005 “100% rule” Dimplex A 12 M
Energy calculation (kWh/yr) rdSAP / GD Assessment 30,285 kWh/yr HP Installers GD Approved
Deemable Renewable Heat contribution
SPF based on flow temperature / Heat Emitter Guide
2.7 (heating) How audited? Hot water?
kWh Renewable Heat 21,635kWh/yr
RHI Payment Based on 10p/kWh £2,164
Benefits of High Efficiency Heat Pumps under RHI
• RHI income increases due to higher renewable heat contribution (kWh/yr)
• Lower fuel costs from higher SPF systems also make significant contribution
• Higher fuel savings at lower total investment cost to achieve from A Class
provide additional benefit still
Fuel type Flow
temp ( C) Stars HEG SPF
7 yrs RHI income
£
Oil 0.8 0
ASHP 50 3 2.7 13,908
ASHP 45 4 3.0 14,624
ASHP 40 5 3.4 15,382
Dimplex A Class 50 3 2.7 13,908
7 yrs fuel saving vs
oil
Counterfactual
Capex* Total
Benefit £ Net
Benefit £
0
7,200 9,292 21,100 11,800
8,195 9,839 22,820 12,980
9,250 11,912 24,630 12,718
10,225 9,502 24,132 14,630
* Counterfactual capex = cost of heat pump + radiator upgrades - £2000 assumed oil boiler replacement cost
Oil boiler
Heat Emitter Guide
assumed ASHP
performance
Dimplex A Class ASHP
Htg system flow temp 80C 50C 50C
SPF: Heating 0.8 2.7 3.6
Equivalent Star Rating 3 5
SPF: DHW 0.45 2.2 3.0
Required Total kWh/yr 30,285 30,285 30,285
Paid for kWh/yr 42,020 11,577 8,650
Annual fuel cost £2,354 £1,470 £1,099
Heat pump size required 12-14kW 12kW
Investment costs* £10,450 £10,650
Fuel saving (7 years)† £7,200 £10,225
Potential RHI income** (7 years) £13,900 £13,900
Savings and income benefit over 7 years £21,100 £24,125
Net benefit over 7 years £10,650 £13,475
25% better off using Dimplex A Class
Dimplex SPF figures calculated using BRE approved EN15831 calculation tool *includes supply and installation of heat pump, cylinder, appropriate radiator upgrades, VAT and RHPP subsidy. † assumes average fuel price inflation for oil and electricity of 5% per year **for illustrative purposes only, based on 10p/kWh per kWh of renewable heat produced. Assumes 2% RPI. Final tariff rates and eligibility criteria to be announced by DECC in Summer 2013.
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My Green Heating
www.mygreenheating.co.uk: • New website aimed at home owners and those interested in RHPP/RHI
• Heavily promoted using Google adwords
• Easy to understand info on heat pumps and solar thermal
• Savings calculator tool
• Get a quote now!
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Online Sizing & Selection Calculator
www.dimplexheatpumpcalculator.co.uk • New website aimed at installers
• Provides an online “Quick Quote” for projects
• Full product specifications, technical details, list prices
• Savings calculator
• Printed report
http://www.dimplexheatpumpcalcu
lator.co.uk/
Online Sizing & Selection
Calculator
All the down sections must be completed for Quote to be generated.
Guest Logged In No Save, Print or Upgrade Option Available
Insufficient
Details
Entered
Heat Pump
Selection
Only
Full Selection
& Quote
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• Project and system design:
• Heat loss calculations
• Product selection and specification
• Advice and guidance on system integration (hydraulics, electrics)
• Energy calculations
• 3 service levels:
• Quick Quote (online)
• Intermediate: design based on building plans
• Full MIS3005: including additional requirements to comply with all
aspects of MCS
• Team:
• Rob Mack: Technical Manager – Renewable Heat
• Matt Maskell: Design Engineer
• Jonathan Ford: Technical Manager - PV
Dimplex Renewables Installer Services Team
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Heat Pump Monitoring Portal System Architecture and Data Flow
80 data points transmitted every 5 mins
via GPRS or Broadband
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Heat Pump Monitoring Portal Some web page examples
Home page
Registration and Log in
for:
• Home owner
• Installer
• Housing provider
• Dimplex technical
services
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Heat Pump Monitoring Portal Some web page examples
Centralized management
• For multiple properties:
• Instant map view of
portfolio
• Colour coded status
• Overview of
performance
• Error history
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Heat Pump Monitoring Portal Some web page examples
Site Information
• Multiple tabs with
increasing levels of
information
• Case study with
photos and text
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Heat Pump Monitoring Portal Some web page examples
Simplified Views
• Simplified view with
current: • Actual and demand room
temperature
• External temperature
• Flow and return
temperature
• Energy consumption,
• Heat pump status
• Actual Daily, weekly and
yearly SPF
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