In celebration of our 20th-year in business, we are offering our MILJOCO thermometers and gauges at the prices from when Mechanical Equipment first started! Yes, we are significantly rolling back the prices on these essential products.

For the month of June, you can buy these MILJOCO ISO 9001 certified items at roll-back prices:

 

  • Standard MILJOCO 9” Thermometer with 3.5” stem, model SX935 for $25.00or $29.00 with a standard neck brass well, model W35B.
  • Standard MILJOCO 9” Thermometer, with 6” stem, model SX960 for $30.00or $40.00 with a standard neck brass well, model W60B.
  • Standard MILJOCO stainless steel, 4.5” Contractor pressure gauge, model P4598L, for $14.00 or $21.00 with needle valve and snubber.These are also UL certified per NSF/ANSI Standard 61 and 372 to be safe in potable and drinking water.

You can combine orders for even bigger savings, and even order extra to hold as inventory to increase your savings.

There’s no limit on quantities at these prices, we’ll even discount further on orders of 200 units or more. (Any combination of thermometers and gauges that equal 200 units or more – not including wells or accessories).

 

Customization Available

Some of our customers pre-order every year and have us include their company logo and phone number on the face of the pressure gauges. There’s an additional cost added to these prices for that, but why finish a project and leave the service calls up for grabs? With your name and contact info on the face of the gauge, odds are that they’ll call you when they need service. Call us for details on customization options.

Remember, this offer is only good through June 30, 2019, so review your current project list and take advantage of this great offer!

PSST: If you’re wondering if these prices are an honest-to-goodness real deal, check this link out, we’re even cheaper than Walmart!

 Give us a call at 800-355-7061 with any questions on this Anniversary offer.

BoilerCondensing BoilersHydronic BoilersNon-Condensing BoilersCondensing,commercial boilers

A commercial hybrid heating system can be the perfect option for your next boiler room upgrade. In this latest blog post from Patterson-Kelley, “Commercial Hybrid Heating Systems, Explained in Less Than 700 Words!” you’ll see how a hybrid heating system can help you save money on your initial investment, while still operating at the highest levels of efficiency.

 

Commercial Hybrid Heating Systems, Explained in Less Than 700 Words!

Eventually, all commercial heating systems need to be replaced – and whether you replace one unit, or five, it will require a significant investment in time and money.  In upgrading your system with the latest technology can offer in condensing equipment, high system efficiency, building management and connectivity, the cost to retrofit your boiler room can escalate quickly.

Fortunately, there is an additional option. You can choose to update your boiler room while saving on installation cost and optimizing your heating system efficiency by considering a hybrid system approach.

 

What is a Commercial Hybrid Heating System?

Hybrid systems consist of one or more condensing boilers, combined with one or more non-condensing boilers that perform the same function. It is designed to both, accommodate building loads, and provide instant savings on the cost of installation.

The design of a hybrid system is calculated to handle the building load with the condensing boiler(s) until it can no longer condense or maintain high efficiency levels. Condensing boilers are more efficient when maintaining lower temperatures and lower percentage of boiler modulation (1-50%). Once they begin exceeding certain parameters, they become less efficient.

In a hybrid system, the temperature required to heat the building on a given day would be used to calculate the building load and size the unit(s) accordingly. For example, an engineer would select a specific building and calculate the energy required down to a specific outdoor temperature without exceeding 150°F boiler temperature. When the system calls for 150°F and below the condensing boiler will run, but when the system calls for 151°F or above the non-condensing boilers will kick-in to accommodate the load. This is assuming that the system will operate at a 30° delta T, so that the return temperature is at 120°F to 130°F. This will cause the condensing boiler(s) to provide high efficiency to the best of its capacity.

 

Proper Control of a Hybrid Heating System

Applying the right control to a hybrid system design is extremely critical for proper boiler sequencing, and to attain the most condensing run-time during boiler operation. The end user must be able to prioritize the start sequence of the boiler system. In the case of mild weather, the condensing boilers must have priority in satisfying building load requirements. When the weather changes, and the outdoor temperature drops below the point of boiler condensation (90%+ efficiency), the control should engage the non-condensing boiler(s).  At this point the difference in efficiency between the two types of boilers should be about 1-1 ½ %. The condensing boiler will now be operating at 88%, while the non-condensing boiler operates at 86.5-87% efficiency.

 

Why Install a Hybrid Heating System?

The benefits of installing a hybrid system include increased savings on installation costs and maximized efficiency. A non-condensing boiler can be about 40% more cost effective than a condensing boiler. When replacing a multi boiler system, purchasing a multiple condensing boilers can become more expensive than a combination of condensing and non-condensing boilers.

 

Prevent Challenges with a P-K Hybrid System Solution

Lacking a good boiler control system that can effectively manage the boiler input based on the temperature requirements of a building can become a great disadvantage when setting up a hybrid system. In which case, the building loads would need to be calculated in a way that a portion of the boiler plant will be condensing and the other portion will not be condensing.

In the past, setting up a hybrid system could have been intimidating for both the system designer and the installer. Those times are over! With recent boiler technology breakthroughs, controls are now able to achieve boiler sequencing and manipulate loads based on the type of boiler and temperature requirements.

The Patterson-Kelley NURO® Touch-Screen Control has the flexibility to control hybrid system applications. Just with one click within the settings option, the control can walk you through the easy steps of setting up the appropriate parameters. Even if the boilers are connected to a building management system, properly setting the hybrid system with the NURO® control can be a piece of cake!

Next Steps?

Interested in more information on the Nuro system and how it might help your clients? Give us a call at 800-355-7061 and we’d be happy to answer any questions or help you with the engineering specifications.