1. radiatorlabs.com Get Cozy! Radiator Labs

2. radiatorlabs.com Steam heated buildings waste enormous amounts of money through overheating In NYC alone, 75% of buildings are heated by steam Heating represents approximately 30% of a building's energy cost The Problem The US Department of Energy estimates about 30% of the heat is wasted, translating into $7 billion in annual waste in the US alone 2

3. radiatorlabs.com (Patents pending) Technology: Insulating enclosure + Thermostatic fan control + wireless communication Product: Radiator Labs “Cozy ” Uniquely enables tenant/management control of heat output Best-in-class fan provides 8- 10 years operating lifetime Radiator Labs “Cozy” 3

4. radiatorlabs.com Pilots in NYC have already shown 25-35% reduction in energy use (along with increased comfort for occupants) Cozy is controlled wirelessly and eliminates overheating Cozy + machine-learning mesh network directs heat from hot to cold rooms – equalizing temperatures and maximizing efficiency Radiator Labs produces smart radiator covers How it Works 4

5. radiatorlabs.com Tenant/Mgmt Controlled Comfort Control can be kept to management or granted to tenants Allowable temperatures at management discretion. Control can be kept to management or granted to tenants Allowable temperatures at management discretion. 5

6. radiatorlabs.com Real-Time Monitoring and Alerts Cloud analytics provide operational and building monitoring support, allowing for a recurring revenue stream. Real-time alerts on temperature issues, radiator health, and boiler function. Long-term analytics on building operation and optimization strategy allows for a building to be proactive regarding space heating, enabling building staff to be aware of problems before the tenant does and save money on maintenance and fuel costs. Building Status ALERTS Radiator Faults: Apt. 4G Steam Traps Apt. 2L Apt. 3L 6

7. radiatorlabs.com Financial Impact to Owners/Managers 30% fuel savings reduces building OPEX, increasing NOI, enhancing the value of your asset(s) Tenant comfort is enhanced, fostering retention Helps reduce maintenance and staff costs through real- time monitoring of systems and problem alerts Eligible for most utility incentive programs Bottom Line: Saving buildings 30% in heating decreases OPEX by 10% 7

8. radiatorlabs.com Pricing $495 / radiator (base cost) Includes comprehensive one year warranty Installation $55 - $110 each (depends on complexity) Discounts available for self-install option Radiators w/space restrictions may incur additional costs Monitoring & Alerts Included in first year of operation optional starting year two Utility Incentives Generally cover 30 - 40% of installed cost for NG-fueled buildings Must have firm gas account to be eligible Dependent on utility approval Oil & district steam customers enjoy very fast paybacks (no incentives) 8

9. radiatorlabs.com “170 years later, you can now close your window in winter.” Contact: 646.902.HEAT (4328) info@radiatorlabs.com Marshall Cox – CEO/Founder Dave Yeskel – COO 9

10. radiatorlabs.com Appendix 10

11. radiatorlabs.com Cozy Exploded View Cool Air Warm air 11

12. radiatorlabs.com Cozy Sensors 1.Power supply 2.Room sensor 3.Radiator sensor 4.Steam trap sensor not shown Room wall sensor placement 12

13. radiatorlabs.com 33% energy savings Heating System: Two-pipe steam Size: 120 units, 50,000 square feet Fuel: #4 heating oil Vintage: Built in 1908 Costs: $36,000 Payback: Two years Case Study 13

14. radiatorlabs.com Before Radiator Labs After Radiator Labs Proven Results 14

15. radiatorlabs.com * Baseline domestic hot water production removed 33% (multi year) Reduction in heating costs Proven Results 15 33% reduction

16. radiatorlabs.com 2-year payback Based on $500 unit cost $31,000 Savings in heating cost 220,000 lb. CO 2 Annual GHG emissions from ~ 20 cars 70 lb. PM 2.5 Health hazard in urban areas Proven Results 60,000 ft 2 with yearly savings of $31,000  ~$0.50 / ft 2 16

17. radiatorlabs.com Cozy vs. TRV Easy Install Wireless Control Smart Home Compatibl e Radiator Compatible Energy Saving s CostLifespan Radiator Labs Cozy 30%$495 8 – 10 yrs TRVs (Danfoss, Honeywell) ~5%$200 2 - 4 years The Radiator Labs Cozy offers superior performance & lifespan compared to TRVs, while providing the connected and learning benefits of smart thermostats. 17

18. radiatorlabs.com Process 2 weeks 6-8 weeks Meeting/Demo Feasibility Study Proposal/ Contract BuildInstall 2 weeks Each radiator is measured and photographed for a custom fit 5 minute survey per radiator ~6 weeks to manufacture Slips over existing radiator Attach sensors & plug in No wiring or plumbing is touched 15 minutes per radiator Installation: Survey Process: 18

19. radiatorlabs.com How Radiator Labs Fits into NYC 80 x 50 30% energy reductions means less GHG emissions & healthier neighborhoods Helps support goals of Retrofit Accelerator & Carbon Challenges Full building retrofits are too expensive and not realistic for most owners/managers Sources: 2014 NYC Local Law 84 benchmarking report (#1 and #2), 2013 LL87 data (#2 & #3) Steam heated multi-family buildings represent 80% of NYC energy use and GHG emissions* 19