(510) 444-1776 or (925) 444-1776
Request Service
Request Service

Heating and Cooling Service of Oakland, CA

Thermostats allow many options for controlling the comfort levels in your home with ease. Thermostat options include wireless access, programming, remote call in and humidity level controls.

Harry Clark offers a complete line of digital thermostats, programmable thermostats and comfort controls to meet your needs. Each has been designed to maximize the performance of your heating and air conditioning system with reliable, accurate temperature control. Ease of use and an attractive, streamlined design make our thermostats the perfect fit for any home's décor.

A zoning system is able to divide your home into different zones for better energy efficiency and comfort control. By adjusting the comfort levels in zones you are able to accurately compensate for areas that might have high ceilings, receive direct sunlight or near frequently used entrances. This flexibility ensures that you are only using the energy needed while retaining a perfect indoor climate.

Thermostats & Zoning

Thermostat Brands

Honeywell FocusPRO® 6000 Thermostat

Honeywell's FocusPRO® 6000 Programmable Thermostat offers the perfect blend of features, performance and value that delivers the highest degree of temperature control accuracy. With the largest backlit screen in its class and an easy-to-read digital display, FocusPRO prominently displays both room and set temperatures.

  • Energy Savings--Program to save up to 33% on annual heating and cooling costs.
  • Weekday/weekend programming. Use as a 5-1-1 (weekdays, Saturday, Sunday) or 5-2 (weekdays, weekend) programmable thermostat, whichever best fits your lifestyle.
  • Easy access battery replacement. Flip-out door for easy battery replacement without removing or disassembling the thermostat.
  • 5-Year Limited Warranty.
Honeywell FocusPro 6000


ColorTouch Thermostat

ColorTouch™ is a multi-functional, simple-to-use, richly featured, programmable touch screen thermostat that thinks it's a digital picture frame. ColorTouch has customizable backgrounds, including the users' own photos, and more than a dozen preset themes, including holiday themes.

Product Features & Benefits:

  • Customizable appearance using users' own photos
  • Built-in nature and holiday themes
  • ColorTouch Assistant software make configuring fast and easy
  • SD Memory Card makes import/export between thermostats easy
  • Engaging screensavers with slideshow, digital and analog clock options
  • Scheduler keeps home temperature comfortable
  • At-a-Glance Screen lets users see temperature and heating/cooling status
  • Energy usage info at the user's fingertips
  • Security features for locking thermostat



Honeywell Portable Comfort Control®

The Portable Comfort Control is a handheld device that senses temperature wherever it goes - giving you the freedom to make adjustments from anywhere to be comfortable in the rooms where you live.

Plus, in temperature-zoned homes, the Portable Comfort Control can act as a master control for all the zones in the home, providing you with maximum total home comfort, convenience and energy savings.

  • Ultra-Simple - 98% of homeowners quickly understood how to use it when asked
  • Zero Interference - with other wireless devices in the home such as baby monitors or cordless phones
  • Built-In Pager - push a button on the thermostat to easily locate the control with an audible noise
  • Goes The Distance - works in every home - tested up to 6,500 square feet
  • 1-Year Battery Life and 2-Month Warning - gives you plenty of notice
  • Built-In Back-Up - in the event that power is lost from the Portable Comfort Control, the thermostat will resume control of your system

*Must be purchased in one of the following kits for operation: Prestige™ Comfort Systems, Wireless FocusPRO® Systems, or Wireless Zoning Systems.

Honeywell Portable Comfort Control


Honeywell Portable Comfort Control®

The Prestige Thermostat is the world's first high-definition, full-color thermostat that redefines what a thermostat can do and how a thermostat can look. Because of its unique on-screen display, Prestige displays information in a way that is easy for you to understand.

It's patented, interview-based setup screens use natural language to ask questions like "What time does the first person wake up in the morning?" to guide you through programming with no need for an owners manual. This not only makes programming a breeze, but also can save you up to 33% on annual heating and cooling bills.

  • High-Definition, Full Color Display - visual clarity of the display is 3 times better than typical thermostats
  • Graphics - uses a graphical user interface to display information in a way that's easy to understand
  • Simple Touchscreen Technology - no hidden doors or complex buttons
  • User-Friendly - consumers rated it 10 times easier to use than other thermostats
  • Tri-Lingual - adjust settings to display in English, Spanish or French
  • Temperature Control on Demand - sense and make adjustments from anywhere in the home (With Portable Comfort Control)

    *Available in HD - High Definition (color) or SK- Standard Definition (black/white)

Honeywell Prestige Thermostat


Honeywell TrueZONE™

Control heating and cooling comfort where you want it, when you want it. With a Honeywell Zoning System, you won't heat empty rooms or over-cool one area in order to be comfortable in another. Zoning makes it possible for everyone to be comfortable.

You don't have to buy a new heating and cooling system for every room. A Honeywell Zoning System uses dampers in your ductwork that open and close as needed based on each zone's thermostat settings. When a zone is at the selected temperature, and doesn't need to be heated or cooled, the dampers close to save energy and maximize comfort elsewhere. Think of it as controlling your heating and cooling the same way you control your lights - a thermostat controls each zone to the temperature you choose.

TrueZONE™ HZ432 Panel for conventional, heat pump or dual fuel applications expandable up to 32 zones (3H/2C)

  • Intuitive Installer setup. Easy-to-follow, digital display uses real language to guide installer through four easy steps.
  • Standard Checkout Procedure
  • Robust Push Terminals
  • Common-Sense LEDs
  • Clean, Professional Installation
  • Smaller Footprint
  • Variable-Speed Fan Control
  • Discharge Air Temperature Staging
  • Advanced Dual-Fuel Operation
  • RedLINK™ enabled for wireless operations when used with THM4000R1000 Wireless Adapter
Honeywell TrueZONE Zoning System

See how zoning works with the flash animation below. Adjust room temperatures to the desired ratings and then click the "Go" button.


Previous Page...



York Heating and Cooling Bryant Heating and Cooling Mitsubishi Electric Honeywell Heating and Cooling Takagi Tankless Water Systems April Aire Indoor Air Quality Trenchless Sewer

Alameda | Albany | Berkeley | Castro Valley | Concord | Hayward | East Bay | El Cerrito | Fremont | Moraga | Orinda | Oakland | Piedmont | Richmond
San Leandro | San Lorenzo | Union City | Walnut Creek

Air Conditioning | Takagi | Honeywell | April Aire | Trenchless Sewer | Indoor Air Quality | Tankless Water Heaters | Oakland Plumbing